Well, before you begin, please take a closer look on this toy crossbow, mini, fun? Oh, and it can even launch ~! (Well, if I'm not mistaken, that seems to be a cotton ... ... ） iPhone hello kitty
I guess you want to DIY then come to play ~ DIY--from Dave Hax's creative materials required just one bottle, two popsicle sticks in the Middle, plus a rubber band ~ DIY process please refer to the video.
Designer: Dave Hax