These are the Customs Patches that I have. I specialize in Customs Insignia. All are authentic, as I keep all accompanying letters, if available.
These patches are NOT for trade. Items with a star* in front of them I received directly from the Customs Agency in question.

*Andorra Customs Metal Cap Badge
*Andorra Customs Metal Tie Clip
*Aruba Customs patch - Dark Brown
*Aruba Customs patch - Light Brown
*Aruba Customs patch - Dark, Full Embroidery
*Aruba Customs Metal Brest Badge (current issue)
*Aruba Customs Metal Cap Badge (current issue)
*Aruba Customs "official issue" Tie (Cloth, Made by Giovanni - has Aruba Customs logo imprinted into it)
*Aruba Customs "large" Car Door Decal (plastic, sticks to car door)
*Australian Customs Service (1970's)
*Australian Customs Service (1980's)
*Australian Customs Service (1990's - current issue)
*Australian Customs DETECTOR DOG SERVICE (previous issue)
*Australian Customs MARINE GROUP (current issue)
*Australian Customs Service Metal Cap Badge
*Azerbaijan Customs
*Belize Customs (current issue) (Central America)
*Bermuda-Her Majesty's Customs (Her Majesty's Customs)
*British Virgin Islands-Her Majesty's Customs
*Canada Customs and Revenue Agency (current issue as of January, 2000)
Canada Customs (half moon)
*Canada Customs (previous issue)
*Canada Customs DETECTOR DOG SERVICE (issued by DDS Fund)
*Cuba Customs
*Czech Republic Customs
*Federated States of Micronesia Customs & Tax (current issue)
*German Customs - LAND (current issue)
*German Customs - SEA (current issue)
*German Customs Metal Cap Badge) (current issue)
*German Customs (Breast Hanger) (current issue)
German Customs K-9 (current issue)
German Customs K-9 NARCOTICS (current issue)
German Customs K-9 EXPLOSIVES (current issue)
*Ghana Customs, Excise & Preventive Service Cloth Cap Badge (current issue)
*Guam Customs & Quarantine Agency (current issue)
*Guam Customs & Quarantine Agency CONTRABAND ENFORCEMENT TEAM (current issue)
*Guam Customs DETECTOR DOG UNIT (current issue)
Guam Customs Back Patch - 4 X 11 (color version)
*Hungarian Customs & Finance Guard patches (3 Different)
*Hungarian Customs & Finance Guard shoulder epaulets (10 Different Ranks)
*Hungarian Customs & Finance Guard 10 YEAR SERVICE - PRESENTATION MEDAL
*Hungarian Customs & Finance Guard 15 YEAR SERVICE - PRESENTATION MEDAL
*Hungarian Customs & Finance Guard 20 YEAR SERVICE - PRESENTATION MEDAL
*Hungarian Customs & Finance Guard 25 YEAR SERVICE - PRESENTATION MEDAL
*Hungarian Customs & Finance Guard 30 YEAR SERVICE - PRESENTATION MEDAL
*Hungarian Customs & Finance Guard RETIREMENT - PRESENTATION MEDAL
*Icelandic Customs (current issue)
*Lithuanian Customs (current issue)
Malta Customs (no longer issued)
*Malta Customs Metal Cap Badge (current issue)
*Marshall Islands Customs (current issue)
*New Zealand Customs (bar style) (old style)
*New Zealand Customs (previous style)
*New Zealand Customs Service (current style)
*Norfolk Island Customs (current issue)
*Poland Customs (shoulder epaulet)
*South African Customs
*Taiwan Customs (shoulder epaulet)
*Turkish Customs (Turkey, current issue)
*Turkish Customs - SEA & AIR (current issue)
*US Customs (current issue)
*US Customs (previous issue)
*US Customs Department of Treasury Inspector (Badge Patch)
*US Customs Protectors of Independence 1789-1989
US Customs SPECIAL REACTION TEAM (Subdued Black)
US Customs CANINE ENFORCEMENT TEAM - WEST TEXAS/NEW MEXICO
U.S Customs Service - CUSTOMS ATTACHE BERLIN (Germany)
*Zambia Customs (shoulder epaulet) (current issue)
*Zambia Customs Cloth Cap Badge (current issue) 1