So since I really didn't have a lot of time, mid may  is not the time to start designing a badge. I followed the Keep It Simple Stupid rule, I found a  basic project from an electronics class I  took and adapted it to my needs.  Start with the venerable 555 timer, set that bad boy up in astable mode to generate a square wave, send wave to a decade counter and hook an LED to each output pin.  Simple. 

Arrange components in an artful manner and wait for prototypes.  Also simple.