Thanks Nev,
Having thought about it for a bit, I've decided to have a go at making a peg loom, I found a site that has instructions on it:
http://www.stewardwood.org/ on the DIY Guides bit.
It looks fairly simple, only using a length of timber and some dowelling, and as I only want to make some basic rag rugs with my carrier bags, I though i would give it a shot.
Thanks for the offer of the plans though - maybe if I get really enthusiastic about it and take it up as a hobby, I'll have a go at making a proper loom....
BTW: The Stewardwood website is a mine of knowledge for all sorts of things, including how to make a nukiller (sic) bomb! (Although this has definitely been done with tongue firmly in cheek!)