Some exercises from the Falsy Values workshops.
The good parts:
I'm planning on either writing this up in detail or maybe doing a screencast about screencasting, but I'll give a short version here.
On sound quality:
This matters a lot. In decreasing order of importance:
Lava Lamps can be used as a source of randomness, which can be used to establish a random number generator. The output of the RNG can then be consumed by various computer applications.