Well, I happen to like crackerjack candy (and the prizes), so I'm going to use crapperjack. (Also, the word "crackerjack" already has a positive connotation similar to "brilliant".) It's simple, memorable, and has a certain alliteration.
P.S. Several months ago I made a prediction about the tablet market, and this post reminded me of it. I thought a poor UX would kill the tablet market before the major brands released their devices. I also thought we were going to see more crapperjack tablets.
I'd say that I was mostly right. The one detail that I got wrong is that it wasn't the apps harming the market; it's the devices themselves. These cheap tablets have a poor user experience becuase they were thrown together by people who don't know how to develop a good tablet (nor do they care).