Love the Las Vegas sign - so it's only polite to say 'hello' from Southern Nevada! I'm enjoying watching the build process - thanks for sharing this!

No worries - one of the beauties of the pinball culture is how it crosses national lines. Some people will get offended at anything, fortunately they're not very common. As to tie-ins for the alien element, abductions, UFO sightings, or tasteful(?) butt probe references are all possibilities. And the amount of toys you find when searching 'Alien Gray Toy' or 'Grey' - or reverse to 'Gray Alien' is staggering. I will refrain from attaching images until I am certain where the copyright boundaries for doing so lie.