Plastic coin purse frames

[kusine]

Does anyone know where I can find purse frames in plastic, suitable for a coin purse? FOr an idea of what I'm looking for, click here (http://www.kusine.com/thotspot/2005/08/kantan-amigurumi.htm), then scroll down to the bottom picture (it's too big to just put here).

Google has let me down, and Darice (http://www.darice.com/ecom/default.aspx), who I was sure would have them, didn't. Anyone ever seen these?

Thanks!