After quite some time fiddling about with different things to make stamen stamps I have narrowed it down to one choice, toothpick ends. They are nicely tapered and thick enough to stamp out like the thick stamens of the native Clematis. As you can see from the picture, I tried all sorts of things and nothing was quite right. Either they were too thick, (foam sheet), too thin, (wire) or too textured (woven cord)Now to combine the elements into a nice Clematis stamp.