Jack on a Dime
this is the smallest jack-in-the-box I have ever folded.
the paper is fairly light, but it's been folded so much, Jack barely fits into his box.
he's small enough to sit on a dime.
jack is not folded from a square, but a 1x2 rectangle. half of the paper is the box, the other half is jack. I don't remember how big this paper was before folding, but I could probably calculate the size.