Back in my show-biz days, I seldom rose above the "working the toilets" circuit. One band that did elevate things was The Wallets, a keyboards-sax-bass and drums outfit, led by the visionary Steve Kramer. The Wallets weren't really a "show" band, but they certainly had their moments. One notable tune was "In The Congo", complete with jungle drums, animal cries and an extended middle that always got a big reaction. Halfway through the song, the lights would be doused. The aforementioned cries and drums would reach a pinnacle of cacophony. Then, a couple of us in the crew would start waving flashlights around. In the dark, you really didn't know what you were seeing. That is when Mr. Kramer would whip out his rubber snake, having it wrap around his neck and torso. People started screaming. Lit by our feeble flashes, it really looked alive. Cost of this stage effect: about $20. I'm sure there are still some deluded souls that would swear that the snake was real. It was close enough for a couple of hundred judgment-impaired moshers.
More on Steve here.