Tablesaw Jig Clamp
I added this hold-down to my tablesaw's sliding cutoff jig and find it a great convenience, because the height of the clamp is easily changed. This clamp uses a standard bar-type caulking gun, cut in half, as shown. The mounting block slides to apply clamping pressure where needed, and I covered the plunger with rubber so it wouldn't mar the workpiece. One squeeze of the handle and the work is locked in position – and all for less than $3!
Now that's thinking! It's a little difficult to see how it's mounted, though. Looks to me like there's an arm that goes across the sled from front to back in which the mounting block slides.