I'm certainly interested and not just pickguards...truss rod covers, back plates etc...can be rather tricky to source locally.
In order not to totally re-invent the wheel, you might find this link useful :
http://www.terrapinguitars.com/pdfFiles.html
Also search the GFSA forum, quite a few threads from back in the day regarding custom pickguards. Particularly choice of materials. Wood ones would be quite cool, apparently plexi tends to crack over time & the proper pickguard material is pretty much import only (AFAIK).