I ask for skins on the wow shop 
I still say Blizz should add every single armor to the cash shop (minus the obvious like Gladiator skin) recolored with the primary and secondary colors: Red, Yellow, Blue, Orange, Green, Violet. 
The person with the most appearances collected in the game currently has 59,820 appearances https://www.dataforazeroth.com/leaderboards/account-appearances if each armor got 2 recolors that’d be 119,640 new appearances.