In reply to ceri:
> (In reply to NottsRich) so how much does the sheet steel cost, plus the time to do the job, plus doing something to stop the edges being nasty and sharp or rough... Just buy one ;}
Thinking aloud, it took me 5 minutes to draw a design, 15 minutes to cut it out using a jig saw, and another 5-10 minutes to file the edges to get the profile I wanted. Oh, and another 5 minutes to drill a couple of holes in it. I guess I had the advantage that I've got spare sheet steel lying around and access to tools. Saying that, I'm sure most people could find something (an old roadsign, a thick baking tray, or an old lawnmower blade?)
Some cloth tape wrapped 10 or so times around the handle end to protect your hands, a length of 5mm cord (spare prussic in my case) and a small krab. Job done! My labour is free for me, so from my point of view it saved me £8 of whatever they cost!