Here’s a DC Universe Action League Superman vs. Bizarro figure set. Made by Mattel and released in 2011, this set of mini figures (the figures themselves standing at approximately two-inches tall) are of Superman and Bizarro. Superman is striking an attack flying pose while Bizarro lifts a Kryptonite boulder.
Other figure sets available were Deathstorm vs. Firestorm, The Flash vs. Captain Boomerang and White Lantern Sinestro vs. Green Lantern.
As a countermeasure, I think that it would only be fair to let Superman have a big chunk of lead as an accessory, don’t you?