To increase the transparency of the 1% manual tally process, a few California counties have begun to use 10sided dice to produce publiclyverifiable random numbers (See Cordero, Wagner and Dill 2006). Unfortunately, using 10sided dice to 1) select from only a few precincts or 2) to select from many precincts can require a lot of rerolling of the dice. To increase the efficiency of the process, Cordero et al. suggest "binning" the dice rolls so that each precinct has a range of corresponding values, of equal width, that allow a higher percentage of dice rolls to "hit". This calculator implements this idea. It can also output the binning data in a form that is easily pasteable into a spreadsheet. Please click here for source code and licensing information. 
Here are the steps necessary to paste the bins below into a column of a spreadsheet (We need to insert a new column, format that column and then copy and paste the data below.):
