I think the most interesting thing I did at Pennsic was learning how to make glass beads. I only made one, but it turned out pretty well, and now I want to get the supplies to make them at home. Or, more accurately, at my parent's home, since I need a well ventilated area (like, say, outside) to make them in, and my apartment balcony isn't large enough. Amazon sells a pretty good beginner's kit, so that might be my birthday gift to myself in a month.
This was the best picture I got of it. I put a cup hook in one of the trees and had a chain strung along the top of the frame.
You can't tell from the pictures, but the sign was a bit small. I might try and make a larger version in an easel style. A few other camps had easel style signs that seemed to work pretty well, I'm just not sure what the best way to secure it to the ground and light it would be.
One of my favorite things at Pennsic is all the music, and my favorite musical act at Pennsic is Wolgemut. You can see them performing here, with the kids dancing around in front of them.
And, of course, I've already begun planning for next year!