Have your cheap chinese set of helping hands vanished in your messy workshop? Or are they too flimsy for the job?
Grab a pair of pliers and a sturdy rubber band. Wrap it a couple of times around the handles and voilá!
The holding angle might be somewhat more limited than those purpose-built tools. On the other hand, thanks to their higher weight, I find the pliers to be steadier and to provide a firmer grip. You can pile them up to some extent too, to change the angle
(The purpose-built helping hands image by joebeone, used under CC BY 2.0)
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