Good advice JTisMe, I ordered some waterslide decal paper and have a really nice printer and scanner (I will scan the designs that I have drawn by hand) so hopefully that will get it done looking good. The tutorial for the paper says that I should spray 2 to 3 coats of a clearcoat on the decal after printing and before applying, I would like to save money and use the same clearcoat to coat the entire pickguard (to make it looks more permanent and unified) after I have put the decal on. I have read the clearcoat tutorial, but I don't think (hope) the more expensive clearcoats would be necessary for this project. How many cans of whatever clearcoat you would recommend should I pick up? Also how many coats and how long between coats? I would prefer something with minimal guitar downtime if possible, shine isn't really that important on it since it's a pickguard, but I would like it to be reasonably durable (I'm pretty sure almost every type would work for this minor thing) and I live in California if that clears up any legal situations about the availability of a certain chemical.
Sinner, a clear pickguard would make for some interesting ideas and would really be able to protect the image. I don't think it would work for the two guitars I am looking at doing this on now though since one is a telecaster and the other is a telecaster clone. I haven't taken the pickguards off yet (I'll probably replace the pickups at the same time) but I believe the pickguards on a telecaster cover sections cut out of the body (I'm sure someone will correct me if I'm wrong) which might look strange. Good idea though.