I found this online tool for studying probability with spinners. BTW I'm looking to find what's available for spinner custum manufacturing and not finding quite what I want. Is there a step up from your basic cheapo cerial box spinner?
Here's a link to the tool:
http://nlvm.usu.edu/en/nav/frames_asid_186_g_2_t_5.html?open=activities
YOu're mighty welcome! I love to help fellow creators in whatever way I can. I know I'm green with game design, but I still try to contribute what I can.