finding shields for 3 inch tartlets

Amazon has silicone mini tart pan shields for sale from a few sellers. The ones by Norpro look the most promising, at 4 inches. I actually use a set of foil ones I sort of "magivered" using a heavy duty foil pan. I just drew circles of the size I wanted and cut them out of that. Regular foil is a bit thin for the purpose, but the thicker aluminum on those disposable pans works out just about right. But given the prices now for those, the silicone might prove a better deal.