TRSE Museum: Sailor Moon Light-Up Figurines
Those items are of the Sailor Moon Stars series that
can be obtained only from the "Grab Item" arcade games, and they appear
to be difficult to obtain (but such rarity makes the treasure hunting more
fun ^_~). Each figures light up in color by pressing a button somewhere
on the black support platforms. The best places to find those figures are
eBay.Inc, and any stores selling collectible Anime stuff.