ponytails always work great for fitness instructors, though it's still kind of default considering Pom Poms already have that

80's workout clothes are the BEST workout clothes! clumsy gals look best in colorful outfits
maybe one of those loose tops, combined with a black body suit and some good ol' leggins (don't forget the leg warmers, those are a classic!)
colors all depend on what base colors she has in the first place and I don't have much to say in that regard
don't have any ideas for names either

hope this helps spark something within your mind

Yeah I'm thinking she might just be regular Pom Pom colors, at least for her body, but idk. DEF gonna have leg warmers lol. And yeah, I think a ponytail would be fitting but also too close to default Pom Pom? Kind of been considering something poofier, like possibly an afro that's kind of tied off into a sort of afro-ponytail thing? Like just a smaller puff on the back of it. Or maybe twin tails, idk.

that one sounds good
just a good ol' hair bun! puffy like a pom-pom (heh)

80s stuff could make for brash color patterns, maybe even on her shell
Big round glasses should maybe be goggles if she moves around a lot? (Also doesn't have ears)
Quick google search for famous 80s workout women reveals the rather blandly named Denise Austin, Kathy Smith, and -- holy shit, Jane Fonda?

Oh yeah I mistyped, meant to put that she's always LOSING them, not using lol. The glasses are kind of the only thing I'm set on since it could lead to a bunch of dumb sexy shenanigans with her looking for them. And doing 80s color stuff with her shell is a really good idea I'll have to think about!