Maybe have a emote where when used you give the opponent 1 ranked medal can be a nice gesture.
Another emote to be able to ask a player for a wager match of 5 medals would be fun too.
Can have a max amount of tip you can give to a person per day and max amount of wager matches per person to so people won’t farm ranked medals (no clue who’s gonna be doing that though)
TDLR: Use ranked medals to be able to tip or gamble with players in some sort of fashion.