It is an item that isn't even SUPPOSED to be in the game, therefor it can easily crash your game. It's just like seeding, because if you drop it off in someone's town or sell it to them, it can crash their game.
Attention all:
The OP is updated with current information about winners. If you're not listed there, you didn't win. Pleas bid again in the next round.
Arctic Kyle: Quit speaking before you know the truth. Read the OP. It's DLC. If everyone reads the OP they will know they're making the choice to sacrifice 1 of 256 spots that DLC can fill by Nintendo.
Currently:
Sean: Blue Pikmin Hat, 5k
Clown Town: Blue Lightsabre, 50k
Corn Dog: Red Lightsabre, 40k