The Device Orchestra Plays "Thunderstruck"

The Device Orchestra has gone wireless. Well, I would suppose that electric toothbrushes are already wireless (mine is) and the only other gadget participating in this song is a credit card reader, but it now runs on batteries. In this video, the trio takes on the classic song "Thunderstruck" by AC/DC. What I want to know is how he gets those googly eyes to stay on the toothbrushes when they are vibrating, I mean, rockin' so hard.  (via Geeks are Sexy)