Metalwork.

Charles is in the EMC2 program. It is a program for those who want to go to school for mechanical engineering. They pay high school students to take free classes during the summer after their junior and senior years. So not only are classes free, they pay you $300 each summer and give you another$300 in scholarships after each summer (providing you enter engineering program after), you also get credits reducing your bachelors degree to an additional 2.5 yrs. How can you say no to that?

This is just one of the fun projects he made this summer.