We had something like that here, but we paid other people to dress up in the costumes... Made me wonder, "How much did you pay those people for such a degrading act? Could that money have gone on our paychecks instead?"
We were allowed to get our picture taken with them... it was like some sort of Corporate Disneyland day. I delcined to participate in the embarassment. I almost expect fingerpainting as a morale boosting event in the future.