XKCD
Every year, disgruntled scientists compete for the Painbow Award for the worst color scale, XKCD 2537
Randall Munroe’s XKCD occasionally features colour schemes: in 1040, Lakes and Oceans; 1732, Earth Temperature Timeline; 2537, Painbow Award.
xkcd bath
xkcd painbow
xkcd temperature
Copyright: Creative Commons Attribution-NonCommercial 2.5 Generic, see details.