Lucas stood at one end of the trampoline and I stood at the other. We took turns in pushing his big red monster truck across the trampoline. If the truck got passed you, a point was awarded to the other player.
We must have stood there and played for 30 minutes (that's a long time for my 3yo to be engaged in one activity!). I loved spending this time with Lucas - such a simple activity but we both had so much fun!