She was a childhood pony for me, although over here fireworks are more Novemberish things xD
I remember I cut her card up, her story and all the ponies as cardboard dolls. I don;'t know what happened to them all though. :/
I still have Sky Rocket. I remember in the store I wanted Twinkler but she wasn't there, so I was deciding between Napper and Sky Rocket. And Sky Rocket won (right choice!)
There's a comic story I loved as a kid where Wizard Wantall sends his stooge to go kidnap Sky Rocket because of her firework magic. I remember thinking it was funny because the stooge wants to kidnap Twinkler instead because she's pretty, and I had ended up with Sky Rocket because Twinkler wasn't there xD.
I have the MO one too, but she's not a childhood pony.