I'd dig a Droid 3-pack, but only if it was ALL battledroids (not the super, or any other droid). An officer/Oom9 paintjob, and done in 3 color variants. Green, Cream, and Red... I'd prefer one sculpt though, and poseable.
Take the Droid from the Episode One Naboo 4-pack (the TRU set) and just cast him in all those colors. That'd be a sweet set I'd sink a lotta money into. As it stands my Clones are shooting at thin air for the most part... Well, a couple spider droids act as targets too I guess.