Laseriffic have just made and have started selling their X-Men topper. It has a Multi Light LED source where you can choose 1 of over 20 colours to stay on cycle through.

If you want to order one go to - http://www.laseriffic.com

And if you are curious for other info check out this thread:

http://pinside.com/pinball/forum/topic/laseriffic-xmen-topper-revel-or-guess

Yeah I saw them on pinside, it's good to see that the design changed to 3 claw marks to match wolvies claws. They look good.
The X-men thread on pinside is a good read.