Tennis ball
Foam stick/swim noodles with hole. You will need: 2 5-7cm or 2-1/2 inch ∅ and 1 of 9-11 cm or 3’5 inch ∅
Wooden stick de 50-60cm. You will need: 1 of 3’5 cm or 1’40 inch aprox ∅ and 1 of 2’5 cm or 1 inch ∅
Hardware store
Cylindrical cushion 10x50cm or 3’5×17’5 inch