Two workshops have caught my attention: 101 Things To Do with a Bodhran. (I might attend this one. Off the top of my head, I can think of three: two are unprintable on a forum such as this - and I suspect one of those is physically impossible, and the third is to play the thing properly - a feat seldom attempted). Also: 50 Ways to Silence a Shantyman. (The success of this workshop last year led to the Silent Shanty Group competition detailed above).