Someone told me about this really goofy website called ElfYourself.com. It has four little elf bodies and you upload the faces of you and three pals and then you end up doing a very funny little elf dance. My kids love it and I must admit ... so do I.
How to geek up your Elf.
Use a screencasting capture program (I used iShowU) to capture the whole thing into a Quicktime movie. You can then drop it in iMove or FinalCut for some quick titles and you are off to the races. I did this and now our family elf dancing routine is going on the annual Christmas DVD.