Most families are being instructed to do tummy time with their baby but don't get any instruction! (motherborn.com)
It can initially be used as a prop to support baby while doing tummy time. (babyflathead.org)
You can also do tummy time on an exercise ball, in your baby's crib, on the changing table, laying across your knees or lying on your chest. (lovingmomentsbras.com)