There are promo cards like the 1/3 Breed and the Ultra Munchkin, do a search for Promo Munchkin on eBay and you might find something cool. I like the bookmarks my self. Or you could just use blender and be a Super-Duper Munchkin and a Chimera, limitless race and class cards. A few of those cards are in the new munchkin 7 more good cards. Check it out and find your local sjgames.com/mib/ agent for more goodies.