Nice subject to get a conversation going and either you are pulling everyone elses leg that you believe they grow back every year or you are just tooooo funny.
Maybe someone always gave it to her so it seemed to grow back. You can make yours with a nice bare branch looking like a small tree with bare branches. Get a base to nail, glue or whatever you can drum up for your tree to make it stand up. Fasten,nail,glue that tree tot the base. You can use a flower pot with foam glued in it and then......Spray Paint (Gold, Silver or White) spray that tree,get some dollar bills and rol them up or fold in small fans then tie with ribbon of your choice in color and now hang the money (I'd tie it on with the slender ribbon you used to fold or roll the bills.) and put them all over the tree like leaves. Fans look nice cause you can pull the folds out and they are fancier.) Give the tree now to the person of your choice, you can wrap in the clear big cellophane that is wide so everyone wont be picking the leaves before it get to the person it is for.
There you go .. That is the money tree. Most people have them in closets and use them at parties, weddings, anniversarys, birthdays, confirmations, showers or just to fool someone that thinks they grow back every year.