Lavarand(site info)
A system by which a pseudorandom number generator is seeded by cryptographic hash of the digital output of a photograph of six Lava Lite lamps.
http://www.lavarnd.org/
4.
SG100(site info)
A hardware random number generator that connects to a PC serial port,driver software for Windows 95/Windows NT and example programs in source. Protego Information AB, Lund, Sweden.
http://www.protego.se/sg100_en.htm