I find it very exciting to step away from the seriousness of guitar making and let loose with silliness on occasion. This is my most recent build made of a disguarded silverware box. I guess this was mostly a practice of inlay and pearl cutting.
Well, maybe I don't understand what you are writing, but to clarify. This is one heck of a nice sounding old box. She is loud, resonant and a very easy player. For my total investment, I could never find a guitar that would sound as nice for the price.
Year ago a friend had a great theme for a party - you had to bring a home made musical instrument to get in. Most folks just brought comb/tissue "harps" and such but having a pretty good junk pile I brought the "slide can-jo." This mess consisted of a round cookie tin of about 12" with an old cherry neck from a lap dulcimer that was never finished (not my project) jammed in and held with a drywall screw. For the bridge I had an old whammy bar assembly from a '60s Japanese electric guitar (guitar's probably worth a mint now) that I put on the can with a tail piece to hold it down. It had four strings and I tuned it in an open chord - G I believe - and played it with a slide all night. It was the hit of the party and I donated it to the host when I left. But I wish I'd kept it as it's made a great story over the 20+ years since I cobbled it together. Hey, fun goes on forever!
This has actually become my favorite guitar to play. I thinned out the top from the inside and I put in a rosewood bridge plate, but left out all other bracing. The resonance is really something. It sounds better then my 50's LG1 and it is just as loud. I am currently working on a few more of these.
I believe it! Some great luthiers have argued that it's the builder, not the materials. And some have proven it: Torres with the papier mache guitar, Benedetto with his construction-lumber archtop, and so on. The most interesting aspect of your experiment is to take on the "rule" that a guitar must be shaped like a guitar in order to sound like one. I have heard elaborate "scientific" explanations of how the curved sides and unequal-sized bouts create the sound we recognize as a guitar. Your experience would seem to say otherwise. Any chance you'll be at Healdsburg in August? I would love to try one. At the very least, I am encouraged to experiment. Thanks!