Here is something that i had many time to see, since the time that microcontrollers intruded our lives. Kenneth from kennethfinnegan made a simple dice game, for which he used only the good old TTL chips. 14 TTLs, a 555 timer and 3 weeks is what Kenneth needed for his project. Of course, all these chips could have been replaced by a single PIC or AVR, but the result is impressive. It reminds me of my old projects before i put my hands on microcontrollers. The games goes as follows: A switch is used to roll the dice. The number rolled can be added to the sum or not using another switch, unless it is a 6 that is automatically added. If the total sum is 15, you win. If higher, you loose. Check his site for more info.