Name Theme Contest (EV Horses)

I am restarting my lines yet again, shush I lose interest in zee TBs quickly, xD, now with a breed I've never tried before; TWHs.

But I'm not to creative, especially when coming up with names. Hence the contest.

The past themes I've used before;
Greek (usually translated into their base coat or marking, or something about their appearance)
Songs (songs that I like, or knew well)

Now I need a good one that'll be easy to create names with, but not overly used.

You may suggest as many themes as you like, please list an example or two of the theme as well.

Winner(s) will receive a whopping 5k, because I'm cheap and cant afford much more, xD.

Dark or disturbed- Bloddied Chains
Forest like or flowers- Summer Marigold

*Names relating to your favorite book (series)- characters' names and other things pertaining to the story

*Element-related names- like, if you picked fire, you could try to name all your TWHs fire-related names, or names with fire in them.

Hmmmmmm....... You could name them after different shades of colours: maybe shades of pink for mares (eg: cherry blossom, bubble gum?), and shades of blue for stallions/geldings (eg: cobalt, cyan?)? Idk. Just a suggestion...

Forgot to update this. I chose a theme (suggested to me by a friend irl), to name them after dog breeds they share colors/markings similar in appearance with.