Project enclosure 3x2x1 (radio shack)
3PDT switch (make sure the nut comes with it)
(3) 3.5mm mount jack (radio shack)
1/4 or 5/16 drill bit; I don't remember. :/ I recommend to use the 1/4 first. ;)
The mount jack I bought at radio shack contains three terminals and if the package label reads phone jack then this is okay. The mount jack I bought at radio shack was labeled phone jack and it works just fine. A 3.5mm audio connecter should have three rings in the plug namely tip, ring and sleeve. Three rings and three terminals. Tip: ground. Ring: audio right. Sleeve: audio left.