This is a hands-on 3D model of how a virus infects a cell/bacteria (virus life cycle). I designed this about a year ago during my microbiology unit in science class, but only recently got around to applying the finishing touches. It shows all stages (Attachment, insertion, Production, Assemblage, and Lysis) of the cycle.
Credit to Justin Olive for being my science teacher.
Print all parts on 10% infill, standard layer height, and WITHOUT supports and raft.