For the past three years we've always done the students drawing a Rube Goldberg machine. I need to do the project on computers this year and am finding that it might be difficult to "draw" a Rube Goldberg machine on the computers. I'm trying to think of a new project that encompasses: simple machines and forces. Another idea I had was for the students to create a new tool that could help people and have it include at least 3 simple machines. Then the students make an ad for their tool, and write a description of the different simple machines it uses.