So I just did some math for Kid Cosmic, and Spoilers ahead
And also @jumpingpugs456 don't read this until you've watched all of kid cosmic I dont want to spoil it for you
So we remember at the end of the series the purple alien lady (I forgot her name, Shame on me) said 13 STONES right?, well I Got to thinking and wondered we how many rings would it take for everyone to have one.
So I did the math and since they were counting the original 5 stones, That would mean that there would be 8 stones left over and I did the math and I counted in everyone I could think of and that would mean Rosas parents would get ring each so there would be 6 left and then Carla and Carl would each get one. and that would leave 4 rings left then Flo would get one leaving 3, Then Hamburg and Fry would get one, Leaving one ring left and take a wild guess at who would get that ring, There will be only one person left who doesn't have a ring and that would be Chuck so he would get a ring, I know it might sound far fetched but hear me out on this,
it makes Sense 13 rings 13 people that we know the names of at least. So mabye everyone in town would be getting a ring