Day 18 and it’s time to get into the party spirit with a collection of costume t-shirts as today’s Christmas T-Shirt Countdown offering.

So, if you’ve got an office Christmas party to attend where they insist you turn up in fancy dress, why not save the hassle of making something or hiring an elaborate costume by just buying a costume t-shirt! I think these things are great.

I’ve selected designs from a range of shops to give you an idea of the sort of thing that’s out there, but some of the merchants have loads more. In particular 80’s Tees has a whole bunch. As well as costume t-shirts ranging from Charlie Brown to the Transformer Optimus Prime, 80’s Tees also do full costumes including Mario. They even sell a very realistic Halo Master Chief helmet for the real gaming geeks out there, though it doesn’t come cheap at $115!

You will find another great selection of costume tees at Stylin Online. On the other hand, if you fancy something a bit more unique then maybe check out the costume t-shirts at Choice Shirts. Their selection includes a caveman and a farmer believe it or not.