Found via BoingBoing:
This great HOWTO illustrates the process of homebrewing your own Star
Trek: The Next Generation On/Off switch. I'm thinking it would be a
great controller for a garbage disposal -- tell your kids that it's a
"transporter" and encourage them to "beam down" their left-over
vegetables (but caution them strongly against "transporting" their
hamsters and siblings, of course).
Technically speaking, this is an LCARS panel, but why quibble over technobabble. My wife would totally veto this, but a geek can dream, right?