The purpose of this laboratory experiment is to introduce aspects of materials chemistry, such as polymers and nanoparticle synthesis and properties, to students by their fabrication of a take-home polydimethylsiloxane window cling containing gold or silver nanoparticles. This lab covers small portions of three successive laboratory periods and is designed to touch on a variety of topics relevant for general chemistry students, although the lab could also be adapted for students with more or less advanced backgrounds. (Contains 1 figure and 1 scheme.)