German Navy Aircraft Carrier DKM Graf Zeppelin. Plastic model making is an area of model making in which models are mainly made of plastic (today mostly polystyrene). These are usually standalone models without drive, where the interest is more in a high level of detail than on robustness or function, but which can also be played with to a limited extent. Predominantly kits made from prefabricated parts are used here. Rarely, one finds kits made from deep-drawn shapes (Vacu kits) and pure resin kits.