I found these cool ideas to use old guitars and cases on Pinterest!
Guitar Wine Rack: "I made this out of an old, broken guitar. Didn't cost a penny. "Google" swirl images and print them out. Tape stencils on the guitar. Drill holes along stencil. Remove paper. Use a jig saw to open top about ⅓rd down the side. Inside, remove all splinters from design holes by rubbing a knife blade back n forth. Cut to fit a piece of plywood for shelf, rest on inside skeletal structure, use level, and screw in. Clean up design holes using a chain saw blade sharpener so light can shine through better." Made by Michael Pytleski
DIY Guitar Case Shelf: I found this on Pinterest with no source but ran across this great video tutorial! They used paint and modge podge to cover the guitar case and add hooks to hang jewelry! You can also see the mirror on the other side, impressive!
DIY Guitar Shelf: Repurpose a guitar by opening the front and making shelves! Add a little string of lights and some plants for an adorable wall decoration. Source unknown on Pinterest.
Repurposed Broken Guitar: Turn a guitar into a home decor piece by painting and adding pretty details. Get the tutorial here by Magnificent Mayhem
Custom Guitar Dollhouse: I LOVE this idea! Tiny little furniture for dolls inside of a guitar for her daughter. Credit to Lorraine Robinson