I haven't had much time this week for crafting, but I have had a little bit of time to play with Kaleidoscope Kreator and I made some square, round and octagon shaped tea bag tiles. Here are a few. If you would like to download any of them, click the one you want to open it in full size, then right-click and save the image.
You can find tea bag tile folding instructions on my web site at http://www.handcraftedgreetings.com/teabaginst.html.
Square tea bag tiles:
Round tea bag tiles:
Octagon tea bag tiles: