Stevie Berryman has an incredible sense of humor and pours it into her life, work or otherwise.  She comes up with memes, ideas, games, educational ideas like I eat chocolate.  This particular poster is her Martellato Spectrum poster.  The background is black.  The spectrum of marting is: Pop a Bubble, Pat a Poppy, Back Slapper, Door Slam and Smash a Spider.  This poster is a fun way of reminding your ringers that martellato is a technique, not a dynamic.