Spares

After Edd, Tord, and Tom are finished killing all of the clones, they realize they forgot to kill a Matt clone, who walks up beside the real Matt. However, rather than trying to Spot the Imposter, they instead decide to throw Tom in the trash and have one of the Matts dress up as Tom, not answering the question of which Matt is the real one.

Example of:
Ambiguous Clone Ending