i found this guitar in a trash can several years ago and finally after seeing this insturctable
i was inspired
i purchased the parts for this project from music kits
because i couldn't find the metal to make the keys. since it was bundled nicely in a pack i just purchased it as a whole.
Step 1: Making the bridge
not included in the kit when i purchased it was a bridge, so i took some molding left over from another poject and cut it down to size with my radial arm saw, making sure to leave a notch for my metal rod where the keys lay.
Step 2: Mounting the bridge
drill holes through the front of the guitar and through either the sound hole or in my case there was alread an "access pannel in the back" from the previous owner screw in T bolts so that the whole assembly is mounted together.
Step 3: Insert keys
Insert keys into the slot you have created, then in my case bribe your extra talented musician brother in law to come over and tune the thing to the key of E.