I've never had one, largely because it seemed such a waste of money to have something to wear for so short a time.
But I'm beginning to think, oh, sod it.
Yes, they're corny, but if you can't be corny at Christmas....
I'm looking at them for very little Dgcs, and may well succumb myself.
One year I really went over the top for a seriously tacky laugh - had a sort of joke Christmas 'bra' - there was a squeezy thing you held behind your back, and when you squeezed it, out of the two 'nipples' popped those unrolling squeaky things!
Beat that for tack, anybody! It certainly livened up the cooking.
Everybody was in fits, except for a guest's dog who kept jumping up, determined to kill them! Luckily he was quite a little boy and could never reach.