Pogo is offering 25% Off select Quinn's Aquarium power-ups & sand dollars and A Way with Words power-ups.
No promo code required, the sale prices have already been marked down in each in-game store.
This offer is valid through February 7th.
https://www.pogo.com/games/quinns-aquarium-mahjong
https://www.pogo.com/games/a-way-with-words
Sand dollars? Have I been in a catatonic state when I'm in that game? What are sand dollars?
I've never used them either. I see them listed on the top-left of the screen though.