Cast your beady eyes over this Ibanez electric guitar with custom bead finish. A committed American beadist (known only as Jan) covered in the guitar by laying tiny beads in intricate circular patterns. Archaeological records show people have used beads as an ardornment for over 5000 years, so sooner or later someone was going to stick some all over a guitar. If you like it you can buy it for $15000.
Alternatively get some beads and try it yourself, I found some tips by scouring the web. There are a couple of different ways to go about covering a guitar with beads.You could try glue, or use a double sided tape.
If you're going to glue make sure you have an easy way to apply it or you will waste too much. Check the glue's drying time of the glue. If it dries too quickly, you'll have to do small areas at a time.
You can find extremely sticky tape in different widths, as well as in sheets (try beadwork or scrapbook supply stores, or craft stores). Make sure that it is designed for use with beads, or it may not be sticky enough to keep the beads on permanently. If you have a specific design you have in mind, you could try covering the surface with the tape, then cutting the second backing off in the pattern and filling it in.
A couple of tips, either way. Buy beads by the hank (on a string). That way, if you want the beads on the surface in lines, you can use them already strung, pressing them on the sticky surface then taking out the string. I think that is what Jan did when she made her beaded Ibanez. Also once the glue is dried (or the sticky tape is cured), cover the whole lot with a couple of coats of clear spray varnish, just to make sure those beads stay on.