Dezaskin, makers of decorative PlayStation accessories, have a series of Persona 4 Arena skins. You can get a console skin plus controller decal with either Yu or Rise for 3,980 yen ($50).
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Controller skins are 980 yen ($12) each and yes Dezaskin made one for every Persona 4 Arena fighter.
The same for iOS cases, which are 3,980 yen ($50).