I put the one that Uncle Buck mentions from Terrapin on my J-45. It's 0.060, nicely beveled and is remeniscent of the early 50's pickguards they use. I think it looks great. Terrapin is in Eugene, Oregon, 40 miles down the road from where I live. Call the guy and talk to him, he's a good guy and informative. Oh, yeah, I opted for the tortoise.