I made this design for me samick electric guitar, so i can hang on the wall. 

If you want to make some changes to the design, you can copy my Onshape model here: https://cad.onshape.com/documents/2953bdd734c3a0d2851a00a6/w/dc0a68821e523a1a386e032c/e/cbf45c80141c05bfaa51a978?renderMode=0&uiState=647b36fbf3e2aa7da298432d