"Christmas Challenge" joke

To celebrate Christmas, a landlord says the first 3 customers who can present him with something to do with Christmas can have free drinks for the rest of the evening.

1st customer comes up and presents the landlord with a christmas card.

Nice one says the landlord - thats christmasy - free drinks for you

2nd customer comes up and gives the landlord some holly.
Nice one again, free drinks for you sir

Then the third customer comes up and hands the landlord a pair of used ladies knickers

” Bloody hell - what have these got to do with Christmas? ” Asks the landlord

” Their Carol’s! ” replies the customer!!!
Ha ha ha