Well…this steel guitar is not actually TSA Certified, but at a length of 20-3/4 inches it does fit diagonally in a carry-on suitcase. I had built the first incarnation of this steel guitar a few years back when I had to go on a business trip and wanted an instrument to take along. I was only taking a carry-on so it had to be small enough to fit inside—it turned out to be a perfect fit.
Follow this link to the official project page for additional photos and build notes:
I’m here at Orlando Airport waiting for a flight back to St. Louis. I was at a management seminar over the past few days and had originally designed this guitar for the trip, so that I would have an instrument to play during the down time.
I call it a carry-on electric slide guitar because it is 20 inches in length and designed to fit diagonally across a carry-on sized suitcase. It worked well and though I brought a distortion pedal and mini amp, I really only needed my iPhone, the GarageBand app, an iRig interface, and a pair of headphones.
The bench image is early, as I have since moved the strings closer together and added a 1/4″ jack, but I will likely install three strings on the on the finalized model.