How about completing the Kenner Super Powers collection?
Steppenwolf, Kalibak, Mister Miracle, Samurai, Firestorm, Parademon, Tyr, Clark Kent, Desaad, Mantis, Plastic Man...
Even revamped versions of existing DC Minimates to give them the SP look: Doctor Fate, Brainiac, Darkseid, Martian Manhunter, Penguin, Flash...