I have been using ggplot2 for years, and it has been my favourite plotting system. One thing I have been missing is an xkcd theme until I discovered recently that ggplot, the plotting system for Python based on ggplot2, comes with an xkcd theme.
ggplot(iris_data, aes(x='sepal_length', colour='class')) + stat_density() + theme_xkcd()
ggplot(iris_data, aes(x='class', y='petal_width')) + geom_boxplot() + theme_xkcd()
So, when will The Oatmeal theme be added?