At one time there was a playset that had Luna's chariot, though I'm not sure if either the figures of Luna or the bat ponies came with it or were sold separately.

Wow it's super cool and from such a short scene, I think I totally would have bought it

That's a Groovebird sculpture; costs $1300 to make

Agatrix made it in plushie form

Both the Luna and bat pony plushies looks very adorable the way they are shown.