I had a little bit of yarn left over from the Alaska (Kenai) hat I knit. I added an old skein of handspun--it was spun from the same fiber that I used for the color base for the top and bottom of the hat (dark brown & green sections) and it worked well as a fill-in yarn.
The piece was about 6.5" wide on the loom and sett at 8 ends per inch. I tried a couple different wefts--first a tan, commercially spun alpaca, then a dark green with specks of red and gold handspun merino. The dark green merino was a very fine lace weight yarn. I ended up using it doubled--it was closer in size to the warp yarns that way--and wove away. The project was on and off the loom in less than 24 hours! After washing it, there was an extra 24 hours wait for it to dry.
Now the hat and scarf are a set and get worn regularly. :)