Please find a listing of the oldest insignia first

Canada

Oldest Canadian Customs Patch
Well, it's the oldest that I have been told about anyway!
Canada Slight variation on above patch - issue dates around 1960
Canada Extremely Old Canadian Customs Patch
Finally managed to score this patch!
Canada Old Canadian Customs.
Old issue patch, this one. Becoming quite hard to come by patches in good condition.
ccs_02 Canadian Customs.
Standard uniform patch.
ccs_10 Canadian Customs.
Dress Uniform version of the above patch worn by the ceremonial units.
ccs_fr Canadian Customs - Variation of standard uniform insignia
From what I have been told, this insignia is used extensively in the Quebec province and is rarely seen outside of that area.
Canada Canadian Customs - Altered Version 1
Hyphen missing between the words "Customs Douanes"
Canada Canadian Customs - Altered Version 2
One Gold Bar missing from the Canadian flag at the bottom of the patch
Canada Canadian Customs Regional Patches
This patch, and the one below, were originally designed in Toronto about 12-15 years ago. There were a number of this type of patch designed for each of the regions by members of the Interdiction and Intelligence Division.
ccs_tor Canadian Customs Toronto Regional patch
From the information given to me, there were patches similar to this produced for the following regions: Atlantic; Quebec; Montreal; Ottawa; Toronto; Hamilton; South-western Ontario; Winnipeg; Saskatchewan; Alberta and Pacific (inc. British Colombia and The Yukon)
Canada Canadian Customs Drug Dog Handler - Version 1
This patch started off as an unofficial patch which won gradual acceptance and was adopted as the variation seen below. From what I have been told, some officers still wear this patch in the western provinces.
ccs_ddu2 Canadian Customs Drug Dog Handler - Version 2
Current issue patch. Has both English and French on it, reflecting the Canadian bilingual laws.
Canada Canadian Customs Drug Dog Handler - Version 3
Prototype patch currently under development.
Canada customs_combat_pistol Canada Customs Combat Pistol Club 
canada customs_excise_association Canada Customs & Excise Association, Bullion badge 
ccsyukon Canadian Customs Yukon Patch
Designed to celebrate the Centenary of Canadian Customs presence in the Yukon. Started out as unofficial issue, has since been adopted as an official patch.
paterson Canadian Customs Patterson Patch.
Designed for the Centenary of Canadian Customs presence in Paterson. A slight variation on the Yukon patch (above), but extremely nice nonetheless.
ccs_06 Canadian Customs Baseball Cap patch
This is the regular patch as is seen on the Canadian Customs baseball cap.
ccs_07 Canadian Customs Wet Weather patch
This patch is seen on the Canadian customs wet weather gear.
ccs_08 Canadian Customs Raid Patch
Worn in the Toronto Region by Investigations and by Intelligence and Contraband. This is copy of the Cap badge and is hidden in a Raid Jacket, concealed in the right breast pocket. The jacket in question has numerous identification patches in hidden pockets, used by the Revenue Canada Investigations Division and the current Intelligence and Contraband Division.
ccs_09 Canada Customs Badge Patch
This is an older style badge patch in the exact same design as a Canadian Customs breast badge. Commonly would have the individual officers number or port code embroidered into the space underneath Customs - Excise.
ccs_num Canadian Customs Badge Patch
This is as close as I can get to obtaining a Canadian Customs Badge, a Canadian Customs Badge Patch! Not to sure of the origin, but, hey, beggars cannot be choosers where these sort of items are concerned.
ccstrial Trial Customs Insignia - Version 1
This patch design has been submitted to the Canadian authorities as a possible alternative to the current issue patch. How will it go? Only time will tell.
News to hand - senior Canadian Customs managers have rejected this design because it does not conform to federal requirements for the Canadian flag to appear over the letter "a" in Canada at the bottom of the patch.
ccs_proto Trial Customs Insignia - Version 2
Similar version to the above patch, however also rejected for the following patches.
ccs_intel Canada Customs - Intelligence Patch
ccs_drge Vancouver International Mail Centre - "Seizing the Dragon"
The 'Dragon' patch was designed for use by the Vancouver Customs Mail Centre Enforcement Unit and is their first ever specialty patch. Apparently they have had various hat patches over time but this the first true patch. It was designed to be given to other law enforcement agencies who visit the facility and to the staff who work in the Enforcement Unit. The 'Seizing the Dragon' came from the term 'Chasing the Dragon' which heroin user use when they are getting high. The main narcotic seized at the mail centre is heroin - they are 'seizing the dragon. The Mylar triangle represents the golden triangle as most of the narcotics intercepted come from that region. To satisfy the bilingual issue a limited run of the French version was produced.
ccs_drgf Vancouver International Mail Centre
"Seizing the Dragon"
French Language Version
ccs_yvr1 Canada Customs Marine Centre of Excellence - Vancouver - Version 1
Black background, Marine rummage team Vancouver, left hand side of patch has "806" - Canada Customs designation for port of Vancouver and right hand side has "MCE" - Marine Centre of Excellence - where all training for teams working the waterfront is based, Halifax, Nova Scotia.
Contact This email address is being protected from spambots. You need JavaScript enabled to view it. for this patch
ccs_yvr2 Canada Customs Marine Centre of Excellence - Vancouver - Version 2
Blue background, Marine rummage team Vancouver, left hand side of patch has "806" - Canada Customs designation for port of Vancouver and right hand side has "MCE" - Marine Centre of Excellence - where all training for teams working the waterfront is based, Halifax, Nova Scotia.
Contact This email address is being protected from spambots. You need JavaScript enabled to view it. for this patch
ccs_11 Vancouver Marine Operations
ccs_skimobile

Canada Customs Ski Patrol
This is probably an unofficial patch worn on the snowmobile suits of the Flexible Response Teams who do patrol/monitoring of the snowmobile trails adjacent to the U.S. / Canada border. There are a number of trails which run from Canada into the U.S. There are no ports of entry there just telephone reporting stations so these teams monitor the trails to make sure people are reporting.
There are a number of such teams in N.W. Ontario (in around the N.W. Angle, Fort Frances, T. Bay and Sault Ste. Marie). These teams started over 20 years ago and were then know as the Mobile Surveillance Units.
This patch is not from Manitoba, it might possibly be from North western Ontario, possibly Fort Frances District, Thunder Bay District or maybe even Sault Ste Marie, Ontario

Further information on this patch - produced in Woodstock and only 100 were made, with the staff of the section being given one for their snowsuit and one spare - 20 patches were sent to Ottawa, the Canpass program and major projects and design. Information courtesy of Rob Dougald

ccs_ski_repo1 Reproduction of above patch which has recently surfaced and sold on Ebay for $34 USD. The repo's text and maple leaf is bigger and the background is different. First identified by Michael Bahls
ccs_tor_official Official Issue, 200 years of Customs in Toronto
This is the official patch celebrating the bicentenary of the presence of Customs in Toronto, endorsed by the Canadian Customs.
ccs_tor_tower Prototype 200 years of Customs in Toronto
This design was submitted, however it was rejected due to the fact that permission was not granted for the use of the CN Tower. It was only ever produced as a prototype
ccra_spider Canada Customs Mail Centre Patch
Latest Customs Mail Centre patch. We had run out of the Dragon
patches that we used to give to visitors and guests. Over the past few
months Michael Bahls created the "SPIDER" patch. It was officially unveiled on July 25th during our badge and awards ceremony
Canada Operation Can-Am between US law enforcement and Canadian law enforcement
ccs_sask Saskatchewan regional patch
ccs_yvr3 Vancouver Marine Operations - version 1
ccs_yvr4 Vancouver Marine Operations - version 2
ccs_marine Customs Centre of expertise in shipsearch - Halifax Nova Scotia.
ccs_lacolle_patch Customs Lacolle
ccs_jubilee Commemorative patch celebrating the visit of HRH Queen Elizabeth to Canada on the occasion of her 50th Anniversary Golden Jubilee
ccs_vancouver_vacis Canada Customs - Vancouver Marine Operations
Mobile Vehicle and Container Inspection System