I started on this myself, but quickly realized I don't know what I'm doing. It should be a simple project for anyone who does.
I'd like to request a stripboard layout for the Mint Box Piezo Buffer by Scott Helmke. I've made a few on perfboard and they're incredibly useful, but I think a stripboard version would be easier to build.
The schematic can be found here. The original design uses a 2N5457, but alternate version with the BF245C is probably more useful—I found the BF245C more easily at the usual guitar pedal parts vendors.