I've been playing with possible font/title placement for Voice of the Lost. I always tend to want fancy squiggly fonts, but these are always unreadable in thumbnail. You can see that some of these options would work fine for the cover of the trade paperback, but won't be much chop for an inch-high image.
I've also been playing with fonts for some placeholder covers for next year's books, until I get pictures for them. The font on The Sleeping Life (you'll have to look at it in close up) is one I find absolutely gorgeous, but there's not many covers it would work on.