Here are things you will to do it exactly the same way I did. Some things, like capacitor size, will vary. Other things could be totally different you might try a different logic chip.
Soldering iron + solder
Hot glue gun + glue
4093 (Quad, 2-input Schmitt trigger NAND gate)
1/8″ stereo miniplug connector
9 V battery connector
Small capacitors (I used 220 pF monolothic capacitors)
Single sided copper clad
Conductive foam (comes with microcontrollers and DIP chips)
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