Here’s my rendition on Barry’s “Mini-Me” chorus. I’ve named it the “Monophonic Gizmotronic Symphonic Harmonic Perambulator”. This Mini-Me build is using the MN3007 BBD option and Wilkie1’s Mini-Me “Depth Mod”, adding a Roto-Tone daughterboard to the build. The addition of the Roto-Tone daughterboard pushed past the limitations of containing it all within a 125B, so I went with a 1590BB. Finishing up the enclosure just yesterday, I actually finished the circuit and enjoyed a successful test in October. After finishing the enclosure, re-stuffing, I am pleased to announce that it still lives. And the Depth Mod is wonderful thing. Here are the photos of the entire build in reverse order.
Finished “Monophonic Gizmotronic Symphonic Harmonic Perambulator”:

Straight-Down top shot:

And the completed gutshot:

Here are the guts before stuffing. (Note the washers on the pot and switch shafts. Those are there to eat up a little exposed shaft length on the pots and switch. Otherwise, there would be an larger gap between the bottom of each knob and the surface of the enclosure.):

And here’s a close-up on the details of the jumpers employed to tell the circuit which BBD is being used:

And there you have the “Monophonic Gizmotronic Symphonic Harmonic Perambulator”.