Picture of $100 Origami Box
Use money to...hold your money! 

Video version:

Step 1:

Picture of
What you'll need:
-$100 bill (though I suspect this will work with other bill denominations as well as other proportion rectangles) 
WAFFLES993 months ago

nice but you can do this with any dollar bill

zamrin1 year ago
You know there are new really cool $100 dollar bills! That would be great for this kinda thing.
How expensive! Cool tho :)