Transporting an object by using the outside of the beak,the flippers or the melon, passing and slightly touching an object, balancing/dribbling/catching/throwing and catching/pushing or pulling an object whit the beak, pressing it under water /rolling it on the ground by using the beak or the body and holding it in the beak while swimming.
Reference
Denkinger J. & von Fersen L. (1995) Play behaviour in the bottlenose dolphin (Tursiops trunactus). Proceedings of the 9th Annual Conference of the European Cetacean Society, Lugano, Switzerland. 9-11 February 1995.