2010年度最佳錯覺比賽的第一名大獎

http://www.mathland.idv.tw/scene/scene.htm

2:10 後 搞得跟 Dude perfect 一樣

http://www.boomerangsbyvic.com/

2:10 後 搞得跟 Dude perfect 一樣

不知道3D列印是不適合做這樣的東西

*Build Your Own*
Now even YOU can enjoy crafting your very own returning boomerang. Same model as Mini Heli seen above. I supply the same great wood I use for all of my high quality Boomerangs. Price: $10.00

http://www.boomerangsbyvic.com/products/#airvic

Gregg Snouffer, Coach of the United States Boomerang Team

http://roundtripboomerangs.com/

foam strike switch blade boomerang

Monkey Business Sports