You know what you need? A box with a big button on the top that plays David Lee Roth vocal samples when you press it. Obviously, you didn't know you needed this until just now when we told you, but you didn't know you needed an iPhone either.

Using the Arduino open-source electronic prototyping tools, Dave Rogge put together this most excellent gadget in his basement workshop. It's pre-loaded with a passel of vocal tracks from 'Running With The Devil,' and when you slam that glowing red button the voice of David Lee Roth will be at your command. Can you imagine the hijinks you could perpetrate with this thing? Or the women you could seduce? Or the bands you could join?

If you don't want to make your own, the creator is going to be selling them at his Etsy shop.