I do name mine. Sometimes it takes a while for me to find the right name, though. Lol
ETA: Now that I'm on a computer, I wanted to say more. lol
While I don't have an exact "theme" for naming my snakes, I generally try to think of obscure or side characters from movies/video games/TV shows/etc that I like. Some are more obscure than others. lol
Reggie (Indiana Jones: Raiders of the Lost Ark - it's the snake in the plane during the opening sequence)
Una (Stardust)
Tael (The Legend of Zelda: Majora's Mask - I also used to have his sister, "Tatl")
Tippy (Pixar Short "One Man Band" - the little girl's name)
Celia (Monster's Inc.)
Juju (The Princess and the Frog)
Envy (Scott Pilgrim vs. The World)
Roxy (also Scott Pilgrim vs. The World - I hatched Roxy myself and she was baby #4 of that clutch

)
Rayne (main character from a webcomic)
These two don't fit the "theme":
Racecar (my two-year old son named him the day he hatched out this season. lol)
Dallara (Racecar's sister... I was looking to keep with the racing theme)
Finally, there is Nag (my MBK). My husband named him. I think it's one of the snake characters from Rikki Tikki Tavi?