Very cool. Could I suggest that you display the total balls dropped somewhere as well? Edit: just two niggles - (a) 13 bins would be better numbered 0-12 or 1-

Very cool. Could I suggest that you display the total balls dropped somewhere as well? Edit: just two niggles - (a) 13 bins would be better numbered 0-12 or 1-13. (b) I would round the percentages to nearest value (not down).