I hope I can explain this well: our tooth fairy "folds" the bills lengthwise and then connects the ends to make shapes...this last time one bill formed the handle of a wand while two bills formed a diamond to be the top of the wand ( you tuck the ends into each other)...one other time two bills formed two hearts that were linked by a third bill that was a circle "link"....
our DD's first tooth came out just days before our vacation - so we took it to WDW and Tink brought a Disney $5 dollar - not sure if you are close to a
Disney Store..or even if they still do Disney dolllars.....
have fun, whatever idea you go with!!!!