Buy Fimo Air Dry Clay (Lightweight) from Staedtler - an extremely lightweight, ready-to-use, water-based modelling clay that dries in the air and can be easily worked (drilled, glued, painted, varnished). The hardened material is particularly light, which makes it perfect for objects where weight is an issue, e.g. mobiles, and model-making.
Staedler Fimo air is the air-drying alternative that guarantees to put fresh wind in the sails of creative users. The classic clay-like modelling material is popular in nurseries, pre-schools, schools, after school clubs and homes. FIMOair's easy handling makes it really simple to shape attractive objects with and there is no baking or firing required.