Chair looks good. If you have a torch, try burning it in some spots. And take the hammer and chip some wood off too, it looks cool. As for the headpiece, i got one of those cheap plastic hard hats and painted it. Then attached two thick wires from there to a box above, on the wall, that said "danger high voltage" this box had the strobe light in it, facing down. The strobe light was activated via one of those big throw switches you see on circuit breakers. I also had a fog machine, and sound fx, as well as two red lights that stayed on all the time.
"If you fail to plan, plan to fail"