There is always the need for more clamps. Make your own by cutting 1-1/2 to 2-inch rings from PVC plastic pipe on your table saw. Use an old blade because the plastic tends to melt a bit from the friction and it sticks to the saw blade. Use a stepladder to support the free end of the pipe. Rotate the pipe to cut through. Use the square made for the saw to keep the pipe square. They will roll all over your shop. Pick the rings up and cut a slot with a band saw. Now you have good clamps. You can vary the pipe size and have clamps that will fit most any need.