This game was a huge success at our summer camps.
To start you will need one dozen eggs for every two teams. Seven of the eggs in each dozen should be boiled and five should not. Mix them up in the carton so you can't tell which ones are which.
We had the teams (small groups) send a representative up to challenge a representative from another team. They each selected one egg and (on a count of three) smashed it on their head. The first team to get three of the raw eggs lost.
Here is a video of Jimmy Fallon doing this with Ryan Reynolds:
Please share other ideas and stories of your experience of this game below!