- BuyUranus.com - An extraterrestrial real estate company offering title to a 1-square mile piece of Uranus.
- Crystal Nebulae - Offers three-dimensional sculptures of astronomical objects.
- Moon Land - Offering one acre parcels of land on the Moon with deed, map, and mineral rights.
- Moon Property - Offers deeds for lunar properties.
- MoonEstates - Offers lunar land parcels as well as moon-themed mugs, t-shirts, and baseball caps.
- Planetary Investment - Offering moon property deeds.
