Are you talking about the Lazy Girl design, a small wallet that holds credit cards and ID? Or the magic wallet that takes a folded dollar bill and flips it under ribbons or elastic sort of "magically"?

Lazy Girl Designs are available from a ton of places and they have their own website, too.

The magic wallet pattern is available here.... I'm sure you could make a nicer one than the one shown. Ribbons work as well as elastic and look nicer, too.

Here is a link that might be useful: it's for a full sized dollar bill ...

Thanks for the info flamingo

You are very welcome, Craftygardener, I hope it was helpful to you.