This page posts a Unicode smiling face with different colours and sizes. Thanks to Microchip08 and StaticChristian for showing me how to do this! Also thanks to Redthoreau for the idea of putting a smiling face in a signature. The colour and size are not really random, but the changes in them come from the time of day counted in seconds. I "subst" this signature, so it isn't a problem: the signature policy says not to transclude, but substitution is different from transclusion.
- "You're only given a little spark of madness. You mustn't lose it."
- –Robin Williams