The ever popular polystyrene ball, light and easy to mosaic on to.
We recommend either the Exterior / Interior paste or our white silicone adhesive to glue to these balls. Some adhesives will eat into the polystyrene, both these adhesive are safe to use, they are also quick to dry and are tacky right away.
We have the balls that are solid and some with a hole through the centre of them which you can hang from a rope or put a stake or pole through them etc.