Judy - How tiny is “really tiny”? I have a series of machinist
clamps which I use, and the smallest ones are less than an inch
long, and will open to about 3/4 of an inch. They are standard
machinist clamps, and as they are made of soft steel they can be
filed to shape on the clamping ends. You can make your own
equivalent clamps of whatever size you wish, using even more
malleable metal for the clamping surface.