Playground Shapes and Prints Playground shapes and prints are useful for a wide range of purposes. Playground shapes can be used to indicate where the children should line up when school starts, break time, or during safety routines. You can also use shapes to create routes to the play area. Depending on the options you choose, thermoplastic playground shapes and prints are excellent at helping children develop spatial awareness and motor skills. Shapes are also useful in aiding and boosting verbal and written communication and phonics.