Creative Play is what children do when they are just being children, and there are plenty of things you can do to encourage creative play in your home. Whether it is drawing, painting, cutting, pasting, modelling or making, all children love being creative if they are given the chance, and the act of being creative brings with it so many benefits.

http://www.kiwifamilies.co.nz/Topics/Toys/Benefits+of+Creative+Play.html

making sounds too. making sounds is often neglected as a form of creative play.