Creating interesting Silverlight chart datapoints

I was reading this great post by Jeff Wilcox and quickly found out that some of the needed code to get this to work was missing from his post.
So I went about recreating the missing parts and getting this to work.  Here is what mind looks like now that it is functional:

To get to this work, I followed the same steps that Jeff mentioned so I will not go through them here.  But what I will do is give you the source code that I used.
Tes ...