Tronical's glowing PowerTune knob that replaced the normal volume knob on this Strat. Rechargeable batteries under the pickguard send their power through the guitar strings to the tuners on the headstock. The batteries are easily recharged by plugging one end of a normal guitar cable into your guitar and the other into a special AC charger.

Here you can see the motorized tuners displayed on the back of a Gibson SG. They're quite fun to watch work.

One thing I found very interesting was the prominent display of Red Octane's Guitar Hero 80s, the recently released video game. It always had people playing along on their Gibson SG-inspired guitar controllers. It's encouraging to see someone in the music industry taking the game industry to heart like this.

On display with no explanation was this awesome Reverse Flying V, also from Gibson. It must have been a good day in the custom shop.

Fender had some impressive examples of its custom shop work on display, including this Day of the Dead Tele and matching amp.