1990: Glittering Sweetheart Sister Ponies
MOONSHIMMER
Yellow sweetheart sister style pony with gold mane and tail rooted with red tinsel. Glittering golden suns design, pink floral earring.
Let's not even get into the whys and the wherefores of Moonshimmer being patterned with suns, shall we?
In the pony comics, Moonshimmer played quite an active role in a few stories involving this set and even appeared on the cover on odd occasions.
She was called Twinkler in the USA, but the UK box confirms her UK release name as Moonshimmer:
MOONSHIMMER's NAME (UK, STARFLASH'S BOX)
She was sold in a box in Europe and the UK and on card in the US:
"TWINKLER": US CARDED RELEASE
(Accessory: yellow orange glittery star pick)
Thanks to Dollhands for this picture