It should be noted that tuckerization is different than including real people as fictional characters, as often happens in alt-history novels, or in the somewhat self-referencing tradition of including some version of the late writer/uberfan Forrest J. Ackerman in sci-fi works. Tuckerized characters are simply namesakes, not sci-fi versions of a roman à clef . Over the years, it has become tradition for established science fiction authors to auction off tuckerizations to benefit science fiction conventions or charitable causes.
I bring it up because: A host spec-fic authors are auctioning off tuckerizations this week in support of the Trans Atlantic Fan Fund, which pays for sci-fi and fantasy fans to cross the big pond in order to meet their respective ante-oceanic counterparts. Basically, it's an exchange program for geeks. Elizabeth Bear, David Brin, Julie Czerneda, Cory Doctorow, Nalo Hopkinson, Mary Robinette Kowal and Charlie Stross all have TAAF-benefit tuckerizations up for auction now, with the most expensive one (Stross's) still lingering around $250. That's a very reasonable price for fan-insider literary immortality, even accounting for the price-sniping that will occur when the auctions expire on Monday. If there's an uber-nerd in your life and you've got a a Benjamin or three to drop on his/her hobby, this would make a frakkin' awesome Christmahannukwanzukah-Solstice-Festivus present. (Hint, hint.) And it might even be tax-deductible.