I have several that were named, only two ever got designs, though. A large number of 'em were jokes, too.
Mavericks I Designed (need to find the pics, though):
General Cutlass Cricket:
ZOMG General Grievous rip-off!
That was originally my intention as I just needed a quick Maverick for a story I was writing. Then I decided to actually develope him a bit more. But underneath it all, he's still a Grievous rip-off.
Mavericks I Plan to Further Design:
I'm gonna go hunt down Cutlass Cricket's design. I have his backstory, but it's not typed and I missplaced the notebook I have it written in. As for Dusk Raven, I just need to redesign her as I'm not sure if I still have her designs around anymore.