I bought my father a star in the sky, in his own name. A company by the name of Star-registration sells them at https://www.star-registration.com/. Their sales pitch is that: “We only name stars that are clearly visible from any place on earth throughout the year! If you do not like the star we have named for you, or on the rare occasion that you're dissatisfied with our service, we will name another star for you or refund the full purchase price.” My father LOVED his star, and hung the huge framed, certification map of his star’s location in his study. The full name of his star was: Dr. Peter Eugene Throckmorton, Ph.D. (inorganic research chemist)
The Lunar Registry "Earth's leading lunar real-estate agency" also sells extraterrestrial property, specifically deeds to property on the moon for about $20 an acre. However, be warned that there is no lunar governing body to recognize and enforce property rights. What lunacy! What goofy fun!
Caption: Happy Birthday Dad-NASA astronaut card made by Annmarie Throckmorton, 2010.