Some of the most interesting non-traditional trademarks I have encountered are those owned by the band KISS® for the make-up designs used on stage by the band members.
I recently came across a new value for those trademarks, these interesting sweatshirts from Volcom® [full disclosure – this firm has represented Volcom in trademark matters]:
Images from Volcom.com:
For more details about the KISS make-up registrations, see my post:
Non-traditional trademarks: Makeup used by KISS band members