You may remember her from the Saturday morning cartoon Spider-Man and his Amazing Friends. She co-starred with Spidey and Iceman from the X-Men. Firestar was actually created for the TV show and didn’t show up in the comics until later, so in that sense she is similar to Harley Quinn… just way less popular.
I drew her from memory, so not sure on the accuracy of the costume or hairstyle. But I’m hoping nobody else really remembers her either.
Here’s a process GIF:
And a B&W Variant:
