As a continuation of the discussion, originally at Forum games for 2021? - #7 by bugcat, of Mahjong as a forum game, here are the relevant Unicode characters from Mahjong Tiles (Unicode block) - Wikipedia
π π π π winds
π
π dragons
π π π π π π π π π numbers
π π π π π π π π π bamboos
π π π π π π π π π‘ circles
π’ π£ π€ π₯ flowers
π¦ π§ π¨ π© seasons
πͺ joker
π« tile back
Instead of , Iβd consider using δΈ.
A less heavy symbol, like ε, could also replace the tile back if desired.