ZMS 10th Anniversary: Chao - Sonic The Hedgehog Pin

Happy Anniversary From Zen Monkey Studios!, Limited Edition of 1200, Numbered on Back, UPC: , 810110751224, SRP: $14.99, Hard Enamel Pin, 1.75 in

Limited Edition of 1000, Numbered on Back!, UPC: 810110754010, SKU: 2SONIC-PIN-ZMSAMY, SRP: $14.99, Hard Enamel Pin , 2 in height, © SEGA

ZMS 10th Anniversary: Amy Rose - Sonic the Hedgehog Pin

Happy Anniversary From Zen Monkey Studios!, Limited Edition of 1000, Numbered on Back, SRP: $14.99, Hard Enamel Pin, ~2 in height, © CAPCOM

ZMS 10th Anniversary: Mega Man Classic - Mega Man Pin

Collectible Pins - Three If By Space

Sonic and Tails Flying: Classic Sonic The Hedgehog Collectible Pin – Zen Monkey Studios

Zen Monkey Studios Sonic Wiki Zone+BreezeWiki

20th to 25th Anniversary of Sonic the Hedgehog by 9029561 on DeviantArt

Zen Monkey Studios, Sonic Wiki Zone

High Priority - Sonic The Hedgehog Collectibles

Zen Monkey Studios' 10th Anniversary Series: Chao Pin : Clothing, Shoes & Jewelry

Collectible Pins – Tagged 10 Year Anniversary– Zen Monkey Studios

Sonic the Hedgehog and Shadow 30th Anniversary Limited 3 Piece Pin Set 3,000pcs 810021536125