Duncan Toys Windrunner Yo-Yo [Green] - Unresponsive Pro Level Aluminum Yo-Yo With Double Rim, Concave Bearing, SG Sticker Response

Duncan Butterfly XT Yoyo

Duncan 1978 The Amazing Spider-Man Magic Motion Yo-Yo Unused In

Duncan Yo-Yo Batman & Robin 1978 Vintage In Packaging

Vintage Duncan Yo-Yos & Tops

Vintage 1978 Duncan Batman And Robin Yo-Yo Black Original Box Rare Toy

Vintage Yoyo Set (Duncan/Yoyofactory/ Yomega) - Whole Set 11 Yoyos

Vintage Duncan Wooden Butterfly Yo-Yo Extremely Rare

Vintage Duncan Professional Diamond Gold Mirror Finish Yoyo Yo-Yo

Duncan 1978 The Incredible Hulk Yo-Yo Unused In Package Vintage Marvel

Yo Yo Expert Barracuda With Splash (Blue) - Duncan

Very Rare Genuine Duncan Tin Whistling Yo Yo

6 The Original Genuine Duncan Yo-Yo Imperial Butterfly

Vintage 1978 Batman And Robin Duncan Yo-Yo With And Without String Lot

Extremly Rare Misprinted Duncan Butterfly Yo Yo

Vintage 1978 Duncan Magic Motion Yo-Yo Superman

Vintage Lot Of 8 Yo-Yo Duncan Imperial Satellite Return Top Cowboy

Rare Vintage Duncan Professional Yoyo

Duncan Sprite Boy Yo-Yo

Genuine Duncan Butterfly Red Yellow Yo-Yo Advertising Neenah Foundry

Duncan Pulse Yo-Yo Rare Collector Ball Bearing Light-Up Yoyo Sleeps

Yo Yo Expert Windrunner Green - Duncan

Vintage Genuine Duncan Yo-Yo Yoyo Imperial 3269 On Card

Vintage 1978 Duncan Magic Motion Yo-Yo Superman Dc Comics Superhero

Duncan Freehand Yo-Yo With Counter Weight - Blue/Orange

Duncan Pulse Light-Up Yo-Yo Ball Bearing Yoyo Changes Color Sleeps