I know there are limitless possibilities...here's a few cool ideas...
DCUC Samurai sword to ML Nightcrawlwer (soul sword)-Awesome!
ROML Bucky Cap desert eagle pistol to ML Forge or LCSB Judge Dredd
ROML Madame Hydra green needle gun to DCUC Green Lantern (construct)
DCUC Bronze Tiger sword (also Deathstroke sword) to DCUC EL Dorado
DCUC Bronze Tiger staff (also Deathstoke staff) to ML Gambit
ROML Bucky Cap shield to ML Winter Soldier
ML Dr. Doom Luger to ML Face-off Red Skull
Got any idea's folks?