From the forums this week:
- Inexpensive color organ — hard to know quality but for $5…
- Audacity — open source sound editor up at sourceforge
- Two flicker lamp circuits — Higher end or Simpler
- Simple voice playback box from terror by design
- Simple motion detector
- What’s inside a trash compactor — in case you happen to come across a junked one, there is a motor and mechanism in there to cannibalize
- Webcam server software — webcamxp or webcam32 — in case you want to watch part of your haunt remotely — i am sure there are equivalent open source alternatives