One Way ANOVA figure for Scientists

[#1]

I get asked about this one figure a lot. Almost as many times as I've made it. 

A google search for ANOVA images brings up this figure with hundreds of different data sets. 

I put together a Blog Post with a Script 

for how to make the figure.  There are a number of subtle variations out there too.

So...  How do you make this figure?

I'm thinking of making launch dialog that includes options for popular variants. If you're interested in contributing or collaborating, let me know in the comments below.

[#2]

If I were still on the team...oh well. That ship sailed. But I'll User Community message you with an idea!