It seems Rock Band’s plastic strum bar wasn’t good enough for this player. He used some professional quality wood fittings to mount an actual guitar string which triggers a spring-switch mechanism. Notice the lovely wood inlay inhabiting the former home of the strum bar. Looks quite “high end”!

Related:
strummer.jpg
Fixing a Rock Band strat – Link

Rock Band Drum Dampening
Rock Band drum dampening tutorial – Link