Do you know how long Mark can drum non-stop? 2 hrs and 5 minutes! And the only reason he stopped (we were at the Durham Life & Science museum) was because he fell down and scraped his knee.
And that's on top of whatever drumming he does at home (although not so much now since he figured that his toy drum is not the real thing). And on top of watching a DVD called "Blast" (more drumming) daily. And on top of going to concerts on most Thursdays and Sundays.
So I found out about drum circles in the area. Fortunately, there's a drum circle meeting every Wednesday evening at a park not far away. Mark absolutely loved it even though he never cared for african drums before.
Now, a drum circle is just that - a bunch of people of various ages and abilities drumming and/or trying to drum. Mark was the youngest, but that didn't bother him at all. Surprisingly, Chris tried drumming and got totally into it. He was really good too. I tried, but obviously Mark doesn't get his love of drumming from me :) Fortunately, they did have hoola-hoops.