50 mm Polystyrene Eggs - solid. we offer a variety of eggs either solid or in halves (larger sizes) – ideal for creating your own Easter gifts. Whether you're playing Mother Goose in panto, creating faces, rocket ships, or a fun Easter game, these high quality moulded eggs are a great product. The eggs are light weight and can be painted, glittered or decorated any way you care to imagine. If using glue, please ensure that it is solvent free otherwise the adhesive will eat the polystyrene. All our polystyrene balls contain a flame retarding additive, however in the interests of safety they should be kept away from hot lights, hot surfaces and naked flame.