The ports and packages to make your charts look like they came from the web comic xkcd are coming out in rapid fashion. Dan Foreman-Mackey stylized charts in JavaScript using D3, Mark Bulling did the same in R, and Jake Vanderplas described how he did in Python. Still waiting for a Gangnam theme.

Liam Revell has also produced code to make xkcd-style evolutionary trees in R, which is wicked awesome! –

http://phytools.blogspot.com/2012/10/bug-fix-in-xkcdtree-xkcd-caribbean.html

Mathematica also! See http://blog.wolfram.com/2012/10/05/automating-xkcd-diagrams-transforming-serious-to-funny/

:)

This was just presented at Visweek and uses Processing to make “sketchy” charts: http://gicentre.org/handy/

And LaTex: http://tex.stackexchange.com/questions/74878/create-xkcd-style-diagram-in-tex

All this started from a question posted at Mathematica Stackexchange site. They got some very nice programming solutions and inspired other programming communities to do the same.

http://mathematica.stackexchange.com/questions/11350/xkcd-style-graphs

am I not seeing it or does this graph not have a legend??

The matlab crowd on Stackoverflow also took a stab at this: http://stackoverflow.com/questions/12701841/xkcd-style-graphs-in-matlab and one guy put his source on github: https://github.com/slayton/matlab-xkcdify