http://www.hotfixit.biz/store/Default.asp
I buy mine from Tammie at this URL. One piece of advice, you can purchase hot fix crystals and pay a lot, or you can buy hot fix rheinstone and they are cheap.
I get the rheinstones so I can use them as much as I want. You cannot tell the difference when they are on the items. The children love to decorate their jeans and shoes, no matter when they are cheap. The hot fix studs are metal and are shiny and fun too.