Katx (Bingo's owner) let me know it's PeppermintBlue Fashion Bar 1st aniversary and Alice07 is giving some great gifts. Including an exclusive Bingo dress! It comes with 2 types of skirt.
Bingo dress (only available at PeppermintBlue).

The sandals are also 0L at PeppermintBlue.

Ribbon necklace, earrings and bracelet (all with color change gem) from lucky board at SB Mall.