Awesome action model idea

[cowburger13]

Hey guys. I don't know if a design like this exists, but are there any designs that look pretty normal, but when you poke it , it will close around you finger? My little sister is into spy stuff, so I think she would really appreciate it if I made her a little gadget like this

[origami_8]

Yes, I actually have come up with such a model before, if only I could remember how I did it.

Edit:
Now I remember it was a frog base with the sides spread out like a star and the middle layers folded to the sides to close the star in the middle.On the back side there is a pyramid. now if you insert your finger in the middle of the star, the tips of the star close around your finger and you should have a hard time getting it out (not that hard since it is only paper, but you could use a stiffer paper for a better effect).

Edit 2:
There also is the finger trap by Ilan Garibi. Diagram: http://www.flickr.com/photos/garibiilan ... otostream/
Video of it in action: http://www.flickr.com/photos/garibiilan ... hotostream

[cowburger13]

Thanks so much! She'll love this

[origami_8]

I've drawn a quick and dirty sketch of my finger trap:

[cowburger13]

thanks!

[chesscuber98]

I tried it , It is pretty Cool!!