Star Trek creator Gene Roddenberry owned one of the first Mac-Pluses Apple built, back in 1986, and this led to him featuring the computer in Star Trek IV: The Voyage Home. Now you can own Gene's Mac, model number 0001.
Roddenberry's computer isn't the first Mac-Plus off the production line, as some had mistakenly stated. Rather, it's one of the very first Macintosh 128 computers built, which Apple presented to Roddenberry. According to the auction house, Apple then upgraded the computer to a Mac-Plus and gave it the Mac-Plus model number of M-0001. (Apparently, according to our sister site Gizmodo, the computer really is still a Mac-128, and the "Mac-Plus" thing is meaningless.)