Free printable play money (school money), with a feline theme. Because cats.
(Click each image for the full-size printable versions.)
These are designed to be printed double-sided on any size paper, then cut apart (and trimmed a bit) with scissors.
In theory, the two sides will align properly if you print one side, turn the paper over (sideways, so the same edge feeds into the printer both times) and print the other side. On a typical printer, you should set both sides to print at the same scale, and centered on the paper. Printers vary, however, and you may find that you need to adjust the margins on one side to make it line up with the other. Test on cheap paper first and hold it up to a strong light to check the alignment.)
You are welcome to print as many copies as you like for your own use. (But please link back here rather than selling printouts or hosting copies of these files. Thank you.)