"Fold a dollar bill into a Money Origami Shirt and Tie with my easy step-by-step instructions. Money shirts make a cute way to give a cash gifts or leave tips." - Or send your grandma whenever she sends you a letter with money bow ties
I came across a post of making dollar bill butterflies, the author uses them to make candy leis for kids graduations, here is the link. We don’t necessarily to use dollars, we can use rectangle to make beautiful butterflies.