We do the potato in the stocking. This year DD1 was meant to get one and DD2 was meant to get two, but MIL was packing the stockings and forgot.

Don't think I could cancel, but one year was so pushed that I "called" Santa to cancel, then when DD1 behaved better, I "called" him back. She is more clued in now, so it really was a once off, but the idea of having a present replaced by a potato does concern her.