Here's a pic of a thumbrest I made from an ebony baby-grand piano key: http://usera.imagecave.com/fresnorich/Stingrelicproject/131-3154_IMG.JPG I cut it in half lengthwise, so that it's the same height as the single-coil pickup on my Sting signature bass. It's nicely tapered and rounded off on the end and feels much better than the cheap plastic Fender thumbrest I tried first. I found the Fender thumbrest to be WAY to high. Shouldn't a thumbrest always be about the same height as the pickup? I also like that it's longer than the standard and it doesn't make a cheap, hollow plastic sounding "click" when I tap it with my finger. Finally, it's evenly spaced from the strings, so it's kind of like resting your thumb on the B string of a 5 string bass. I'm very happy with the results and I no longer have to worry about messing up the pickup by using it as a thumbrest.