RealAbsurdity's "Modular Snap-Fit Airship" on Thingiverse is a 3D-printable toy whose parts can interchangeably form part of a Saturn V rocket. More snap-fit vehicles are planned.
This is a fully modular snap-fit (no glue required) model of an Airship. It is the vanilla base for a series of absurd mashups that currently includes a Trireme and a Saturn V rocket. Designed for 3D print, it comes in two flavors: solid and shell.
Modular Snap-Fit Airship (Thanks, crystlem!)