DarkLore you forget the best thing of all...sales! I got the Pumpkins for 60% off after Halloween last year and I'm working on multiple servos via a certain online auction site everybody knows. I had the Lucite lying around from an earlier abandoned Xmas project from years ago (tried to make picture frames as gifts). If you buy a kit, you can make your own servo extensions (discovered that with the 3-axis skulls) cheaper than buying them.
I wasn't going to do LEDs for the eyes, but azdude mentioned it might look good so I thought I would give it a try (that and he built them to work with the controller which was very cool).
I'll try to price everything out, but this will work out to be WAY less than a 3 axis skull. The reason I know is I built 8 of the 3-axis skulls last year and that was a bit pricey (but fun).
P.S. Group Buys help too.