Well, if we are going to list names too, I'll play.
Snakes ...
Malcolm - Mandarin ratsnake (Firefly themed)
Inara - Mandarin ratsnake (Firefly themed)
Atari - Thai Bamboo ratsnake (was before we started the Firefly theme and it just popped into my head and I liked the sound of it)
Serenity - Thai Bamboo ratsnake (Firefly themed)
River - Thai Bamboo ratsnake (Firefly themed)
Zoë - Brazilian Rainbow boa (Firefly themed)
Wash - Brazilian Rainbow boa (Firefly themed)
Kaylee - Brazilian Rainbow boa (Firefly themed)
Simon - Brazilian Rainbow boa (Firefly themed)
Niska - Tricolor Hognose (Firefly themed)
Iroh - Green Tree Python (ATLA themed)
Atticus - Western Hognose (book series themed)
Indigo - African House snake (same book series as above)
Ukiah - African House snake (same book series as above)
Max - Tessera corn (same book series as above)
Tavia - Classic corn (was reading a bunch of books about the Roman Empire, it's short for Octavia but not for any particular character)
Vash - Phantom corn (based on two different book characters, one a dragon, the other a spy)
Stormy - Phantom corn (Just popped into my head and seemed to fit her)
Fiona - Honey corn (based on the Burn Notice character and a good fit for her personality)
Omri - Kenyan Sand boa (Omri and Zimri are my two favorite Bible names and I'd been wanting to name a pair of something that forever but the female KSB I had, I got tired of her biting me every time I had to mess with her and ended up selling her)
Esme - Rosy boa (my Mom named her, based on an old movie, I think)
Sebastian - Rosy boa (based on a book series character)
Emma - Rosy boa (daughter to the two above, just popped into my head)
Smaug - Honduran milk (one of my husband's first two snakes and named for the Lord of the Rings dragon)
Viserion - (my husband's other first snake, named for a dragon in the Ice and Fire book series)
Geckos ...
Miami - Crested gecko (don't remember how he ended up named that but it set the theme for the rest of the cresteds)
Maui - Crested gecko (my Mom named her)
Cairo - Crested gecko (she was named that by the person I got her from and it fit with the theme I had going on)
Luxor - Crested gecko (I bought him with the intent to pair with Cairo, so found a town I liked the name of in Egypt to name him)
Topaz - Crested gecko (available gecko juvi)
Jet - Crested gecko (holdback gecko that will probably get a different name when I know what the gender is)
Gizmo - Gargoyle gecko (took about a year to come up with but it set the theme for the rest)
Gadget - Gargoyle gecko
Gauge - Gargoyle gecko
Then one juvi crested and a rescue BP that are unnamed.