$0.50 mini toy

dinosaur egg will dissolve slowly in water. The baby dinosaur after hatching, will absorb water and "grow" to about two to three times the size....

Simple catapult is a childhood toy which children used to shoot at birds or targets. It converts elastic potential energy to kinetic energy....

sand art provides coloured sand and a sticker template. Your kids sprinkle sand over the sticky surface to apply colour to the template. Colourful pictures can be easily done....