Have you ever tried to make a container for your money, and you had to keep checking the sizes to make sure your money would fit? Well, I had the very same problem, and this is the answer to it: a simple rectangular prism with the exact dimensions of a United States dollar bill. I recommend printing it on a smooth plate to avoid adding extra thickness if you do end up printing it, or making it a bit thicker to use to stiffen up a bag or use as dividers or whatever. It is mostly meant to be used during the modeling process of other objects, but do with it what you will. If you come up with any novel uses for it or just decide to print it out, please leave a comment letting me know what you think.