The Mathematics Club at Dowling College recently worked with George W. Hart, a Professor at Stony Brook University, to build a series of polytope projection models, including simplexes, hypercubes, and the 120-cell. The four-dimensional models workshop featured a hands-on group construction of a large model and was designed to expand students' geometric thinking. Background material regarding Professor Hart's work is available at: www.georgehart.com/hyperspace/hart-120-cell.html