Here’s the rhyme I remember, playing with two rubber balls against the garage door in Dublin, Ireland in the 70s

Plainy, a packet of rinso
Over, a packet of rinso
Uppy, a packet of rinso
Downy, a packet of rinso
Dashy, a packet of rinso
Right Leg, a packet of rinso
Left Leg, a packet of rinso
Archy, a packet or rinso
Plainy, plainy, a packet or rinso, etc. etc. until you were out!

We got so good at this we could then do with one hand.