Keeping up the Christmas theme we've got going here, I think it's appropriate to bring attention to this short from 1979. It was originally part of the "Bugs Bunny's Looney Christmas Tales" TV special, which can be found in its entirety on the Looney Tunes Golden Collection 5 DVD.
This short marked the first time anyone other than Robert McKimson (who passed away two years prior) had attempted to do a cartoon with the Tasmanian Devil. Friz Freleng stepped up to the plate and knocked one out of the park. While some of the animation is a little wonky, Freleng's wit and timing are still there, and Taz is put to good use as an accidental Santa Claus imposter. The fun of it lies with the idea of Bugs immediately seeing through Taz's disguise, but playing along anyway. The special isn't shown much anymore, in fact it will be shown on TV in its entirety for the first time in at least 5 years on Cartoon Network this month. But this particular short has been rerun many times over the years, and helped establish the once-obscure Taz as one of Warner bros.' most popular stars.