Just saw this at Toolmonger. I like the design, seems like something you could use in your shop.
From the site"
"Imagine using only two clamps to glue an entire panel, or even just a jig and a few wedges. The exactly machined arc of the Bowclamp allows you to do just that.
Using cauls to evenly distribute clamping pressure isn’t a new concept, but Zig Industries employs modern technology to ensure a perfect arc that spreads the clamping pressure equally along the entire length of the Bowclamp. You only need one clamp at each end.
They cut the shape of the Bowclamp on a CNC machine and also mill a slot down the length of the Bowclamp to capture the lead screw jaw on bar clamps — and it works equally well with pipe and parallel clamps.
Zig Industries sells the Bowclamp in 2′, 3′, and 4′ lengths for $20, $30, and $40 respectively. You can also buy twin-packs of Bowclamps for $35, $55, and $75, and save yourself $5. If you’re seriously into their product, you can buy the master set containing two of every size Bowclamp for $150, a savings of $30 over buying them all individually."