At the "Back to School" sale at K Mart, I found a folder with pictures of US paper money all over it.
I scanned one of these (a hundred) and removed the president and put my face in there. added some other little things, like my e-mail, home page, telephone number, and changed the word dollars to Smiles (I don't want to get in trouble for making money on my computer!) Here is the front and back. Maybe this will give you ideas for your own money.