I recently played this game called Global Agenda. Totally different from Pocket Legends, but they had a nice system where there were slots you could put items on that only changed your appearance and did not effect stats in anyway shape or form. Therefore you could say wear one of those really nice cash shop hats like headphones or what not but still be wearing your normal gear in thier normal slots and getting the bonuses associated with them. If you wanted to charge a premium for that, like say 5 or so platnum per slot too that could generate revenue as well. That way you could look really cool but still maintain peak performance.

-Greeve