Algodoo

Also, those marbles might not be perfect circles, so I wouldn't recommend using them.

I accidentally forgot the note below the athletes so I deleted the first copy and reposted it after adding the note.

Go ahead!

You can even add your own colors to these if you wanted to! I made 30 extra but I don't know if I want to publish 150 Colors after posting this just yesterday. If you want them then let me know and I'll publish it but it probably won't be too different from this.

I have a rainbow marble. The color changing speed is [1,0,0,0] though.

Duplicate them four times and press play and you'll have my intestines after eating Chipotle

Sorry I'm a month late but if you want to count it as 159 then go ahead