What's a good joke present to get your SO for Christmas?

My dad always likes to tell us about the Christmas when my uncle bought my aunt a tin opener (a good one!) for Christmas, she was apparently rather unimpressed but the story has given years worth of good laughs.

I also remember when my dad bought a holiday in New York for my mum and himself for Christmas, but the tickets were in a small envelope right at the bottom of a HUGE box filled with packing peanuts.

What terrible/joke presents can you think of that would be a good laugh on Christmas day?