I searched for this and, surprisingly, could only find one brief thread on this topic. Does everyone else have one of those things (is it a pommel?) in their living room?
I used the one suggestions I found and tried the arm of a comfortable chair this morning - it's sort of ok. But I won't be able to do all the PE3,4,5 iM's on it because I can't really brace myself.
Any suggestions appreciated!