This can be built with one 555 timer and a CD4017. 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.
Please note that this is a Toy. This can be built with Simple Electronics or even a uC chip.
Toss or Flip this Gizmo, Read its Opinion, Yes, No or Po. Po means "I just do not Know" or ?
Make a table in a Spreadsheet Pros and Cons, get the suggestions of Friends, critics, admirires and hecklers. Take the final Decision after deep contemplation and subtle meditation.