Here are our family's suggestions:

1.) Elephant proctologist
2.) There is a beautiful orange stone called "wolfenite" in the Arizona desert. You have to go down into a mine that stinks like sulfur and it's dark & scary in there! There's one in the Yuma, Arizona proving grounds
3.) Asphalt paving in the summertime WOW! You'll be filthy and HOT
4.) Morgue assistants have to wash the blood & stuff off of the floor after an autopsy. That should be fun. ECK!