Beachball is a project mainly written in Python, it's free.
do unquietwiki a favor
Display Venn-diagram data in a "beachball" format, yuck!
Don't blame me, blame unquietwiki
Inspiration: http://www.reddit.com/r/SomebodyMakeThis/comments/bpb0y/smt_a_beach_ball_chart_maker/
This is a bad data graphic for the following reasons: