Rolling Rolling Rolling

I am taking a walk today and what do I see in the middle of the sidewalk?

Now this is the third hub cap I have picked up off the street in recent months.  This is the first one.  The second one is on my car and I passed even one up.  Who says hub caps have to match?

This obviously is a testament to Rhode Island drivers or the Department of Transportation.

I find this curious because the South Shore Art Center has a call for art with the theme of Journeys.  I hope to create something with these so I need some inspiration or maybe this is my new side job.