2675-U, 2675-B Butterfly Prism

This is very unusual.  I found two mods with the same number. 

2655-B It's A Boy prism, Slicker

2638-B, 3659-A Space Shuttle Prism

Top Image courtesy of Carries Sticker Collection

1646-B, 2621-B Planes prisms

Image courtesy of Carrie's Sticker Collection - see Other Private Collections Tab for website

1617-B Cupid Prism

1616-B, 3680-A Tiger Prism

1011-Z Rainbow Prism

1648-B Rockets prism

1647-B Auto prisms, Star Bright