I did! I based them off a cupcake template I found on clker.com

They are small, about 2x2 inches, but.... because we DISign at 300dpi they will survive being printed bigger with only a little blurring (a lot of people design at 72dpi so we have lots of wiggle room!). I printed one at about 7x7 inches, just under the width of an a4 and it looked good, I think I might put it on a tshirt for me
Here they are... I saved them as pngs with a transparent bg, please let me know if they don't work for you! (these are just the thumbnails - click through for the fullsize ones)