Wiggly mouse-drawn comics where balls represent different countries. They poke fun at national stereotypes and the "international drama" of their diplomatic relations. Polandball combines history, geography, Engrish, and an inferiority complex.
A place for visual representations of data: Graphs, charts, maps, etc. DataIsBeautiful is for visualizations that effectively convey information. Aesthetics are an important part of information visualization, but pretty pictures are not the aim of this subreddit.