I've been searching the web for inexpensive teaching looms for tablet weaving. There are plenty of good ideas out there. I've tried several of them; after some experimenting and tweaking, I've come up with a hybrid version that suits me perfectly. First of all, it's easy to build and it works. Second, the materials are readily available at big box home stores. And third, it's cheap. I put it together for less than $7. worth of PVC pipe and connectors; add another few dollars for the S-hook, the C-clamp, and the two bulldog clips (a lot of folks already have these), and this adds up to a very affordable student loom.
Here's an overall view of the loom in use:
Here's the view from the operator end, showing the bulldog clips fastened around the work in progress, and the C-clamp keeping the loom from tipping over when the weight is hung from the back:
And here's the rear of the loom, with a 1/2 gallon milk carton adding just enough weight to tension the warp:
Here's the materials list for the PVC. I'm sure you can figure out the assembly from the photos.Two pieces 20" long, six pieces 6" long, six pieces 2" long, eight L-connectors, four T-connectors. I didn't find it necessary to use glue, but that would be an option.