Best material to made it is the HIPS filament. i just copy the following text from a EU filament seller. Where HIPS is one of the new kids on the block for 3D printer filaments, it has been around in other fields of application for decades. Polystyrene is one of the most widely used thermoplastic polymers in the world. Because of its characteristics with respect to hygiene, strength and heat resistance, Polystyrene is for instance extensively being used in the food packaging industry, but also for the production of e.g. disposable plastic cutlery/dinnerware and CD/DVD jewel cases.