I think it should be team styled or whatever its called. For instance, have a sword on the back when on Blu (for Leonardo) and two sais on the back when on Red (for Raphael). The only bad thing about this idea is if it's paintable it wouldn't really make sense if you paint it orange or purple. What do you think? Sacrifice paintablity for a more acurate TMNT look, or have whatever those weapons are and paint it ♥♥♥♥ green.