Tristate Electronic Random Toss

Running LED, Random Results, Decade Counter and Clock. Weigh the Pros-n-Cons, Take a Balanced Decision.

See Code gadgets-widgets. This can be built with one 555 timer and a CD4017. See Fun with LEDs but use the pin 5 to connect to a cap you charge with a pushbutton or gate like CD4093 to turn off 555 using pin 4 after a cap discharges. This may simulate a random.