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Published April 28, 2019

This accessory is to have a button that you can hit hard, but is soft enough so you can’t hurt yourself.



Make a small hole in the bottom of the plank wide enough to fit the button. The button should stick out slightly on the other side.

Glue the button in place.

Solder socket to button. (using ground and ‘left’ audio channel pin).

If the button is pressed without applying force to the sponge, hollow out the sponge a bit until it’s no longer pressing down the button.

Glue the sponge on the plank (on top of the button).

Stretch fabric over sponge and staple it to the plank.