Here's some topics of pictures from Pennsic:

Early Russian Costuming (in sidebar).  These are images from the class taught at Pennsic.  In discussion with Maudey, we were complaining about the lack of original artifacts shown typically in these classes (we're such snobs) and I have since seen a whole bunch of wonderful stuff, including from Kiev, in a museum catalog about the Vikings.  So that's where to look.

Tentmaking.  Again, images from a class.  I'll be blogging detailed notes about this class, since I have fabric for a tent of my own, and will be working on that soon.

Wadmal (2/2 twill on warp-weighted loom).  Still processing.