stampin' out

Ever since I added the stamped buttons on the side, I've been looking for some to do something exciting with the header. Any ideas? I checked for stamps at etsy and there are quite a few fun ones that could add some REAL SPICE to everyday life. Like, the mustache ones. The trend might be over and out, but I still dig them. :) I'm going to try to check out Joann's and Michael's for stamps this weekend... but no high hopes. Are there any other favorite stamp shops out there? Thanks!!