I went to the bank to get 25 fresh, new $1 bills, and they told me that you have to order them a couple weeks ahead! Even then, you may not get them! (and this was at Bank of America, not a little bank) Of course, I forgot to get ANY bills then and had to use what I had.... so I made 4 roses with $5 each, and used 2 $1 bills to make "buds" in the center. They're not perfect, but don't think an 11-yr-old boy will care that much :)
I used 2 posts that I'd pinned ... the roses were the easiest ones that I saw to make ... from helenmade.blogspot.com * https://www.pinterest.com/pin/553802085405472904/ ** and I used the buds from kylyssa.hubpages.com * https://www.pinterest.com/pin/553802085405472919/. The buds were really the center of the roses on that pin, but those roses just looked too complicated :) (if the links don't work, they're both under my food gifts & miscellaneous pinterest board)