I invented something I call a one sided dice. However in order to "roll" the dice you need multiple participants with stopwatches. The idea is a person throws something up in the air and people time how long it takes to fall. You apply a different algorithm to each result depending on the range of numbers you want. I think with just a few observers in such a system you could get an astronomically broad range of numbers. If you look at your smartphone stopwatch you will see that most are accurate to the hundredths of seconds. If you used that value as an exponent you could get a range of up to 100 orders of magnitude. There are any number of ways to do this depending on what probability you want.

I know that pinging a network has been used before, but could you do something where the pings from all over a network could be used so you have multiple random "observers" in the system.