chaotic prng

It would be nice to have a few chaotic PRNGs, which are highly praised by some practitioners.

E.g -- 
1. gjrand -- http://gjrand.sourceforge.net/ and 
2. jsf -- http://burtleburtle.net/bob/rand/smallprng.html
3. sfc -- https://gist.github.com/imneme/f1f7821f07cf76504a97f6537c818083

Thanks!