Way too cool! I must ask, where did you get the iron on vinyl?? I have a hard time finding regular vinyl around here!
I found this at Joanne's Fabric.
It is called Heat'n Bond Flexible Vinyl.
Here is a link showing it on their website. This link is for a 20 yard bolt..which is obviously expensive, but I think that is the only way they sell it online. I can usually go in the store and buy it by yard. It is way fun and comes in glossy and matte finishes. http://www.joann.com/joann/catalog.jsp?CATID=cat2882&PRODID=prd14461&source=search