Get a butterfly pen.It's just like a knife, except A) weaker (duh, it's plastic) and B) no blade.That's about as close as you can get, though.Might I suggest: http://www.thinkgeek.com/geektoys/cubegoodies/b6e6/
I have one.:sunglasses:
wanker, those barely even work. they fail.
Worked fine for me.Maybe a little faulty, but still.I wanted something to flip, and I didn't really think I was going to be allowed to get a knife.And so, a pen.
ThinkGeek is out of butterfly kinfe pens D:INTERNET SEARCH TIOME