Here is a link to a new promo star munchkin card that I got from GenCon.
http://www.worldofmunchkin.com/cards/chromedome/
There is also the Mr. Spork and Sidekick: Hologram from the 2014 WH23 promo pack (not sure if those count). Here is the link (you can find images online if you do a search):
http://www.worldofmunchkin.com/w23booster2014/