If I ever feel like getting into weaving again: Make a rug loom with PVC pipe. Weave around top/bottom and sides of PVC to keep the weaving from pulling in. When done, just take apart the PVC and slip off the rug. What a great idea from Pink In Mind.
A while back, I posted about the possibility of doing a simple twill on a rigid heddle loom with two heddles (the original post is here). I never did try a two-heddle tabby, just launched straight in to attempting the.