Step 1: Go get stuff
A yard of white felt
A square foot of neoprene
A white feather boa (or two)
Six square inches of conductive fabric
1/4" Female to 1/4" Female audio cable
Acrylic and an awesome Epilog laser cutter (or a standard PCB)
(3X) 100K resistors
9V regulated power source with M-type adapter
M-Type audio plug
An eyelet tool
(x2) One inch thick 3" foam squares
White gaffers tape
Misc hardware (nuts and bolts, etc)
Misc hand tools (scissors, pliers, etc)
Step 2: Fabric Switch Prep
Then cut out two relatively thin, but equal sized strips of conductive fabric that are roughly 5" x 1.5".
Step 3: Glue conductive fabric
Fold this extra bit of fabric onto the back of the neoprene and glue it down on the other side.
Repeat and make another
Tip: It helps when gluing if you weight it down for a few minutes with something heavy like "The Art of Electronics" textbook.