Apparently, folk have figured out how to make xkcd style graphs in Mathematica and in LaTeX. Can we do it in R? Ggplot2-ers? A geom_xkcd and/or theme_xkcd?
I guess i
You might want to consider the following package:
Package xkcd: Plotting ggplot2 graphics in a XKCD style.
library(xkcd) vignette("xkcd-intro")
Some examples (Scatterplots, Bar Charts):