The book that I received for my birthday, "Finding Your Own Visual Language" suggests cutting stamps from plastic erasers, as an exercise in finding shapes that appeal to you. I've cut my first two, with a craft knife, and with a fair bit of difficulty. On my first one, the edges seemed very ragged. So I was sure that it was going to be a reject. I inked it up and stamped it, and was very surprised! The ragged edges actually seemed to suit the shapes. I need to do more stamping with it, and look at a lot more variations and combinations than I have here, but this is my first page -

The next one I did doesn't appeal to me as much, but I think the design has possibilities -

I took these to show a work colleague, who has now lent me a set of lino cutting tools. I tried them on the eraser in my desk at work and it was so much easier than the craft knife, which has to be "jiggled" so that each line is undercut in order to remove the pieces of eraser. So I'm off to try some more designs!