As the istigator, I guess I’m the one to rule on the near-simultanious posts.
I have to go with 1st come –
Ram on treadmill A turns wheel B
Wheel B raises pulley with carrot C
Carrot C lures rabbit D out of magician hat
Rabbit pulls string tied on leg which drops Thor’s hammer E
Dropping on “Test Your Strength” game F which rings bell G
Bell G scares bird in cage H, which makes it sing.
Causing cat I to get hungry
Starting Golf ball J down Hotwheels ramp
Golf ball J is shot into air with spring K
and caught by a spring-loaded baseball glove L
Driving knitting needle M into waterballoon N
Released water from N pushes boat with poker to end of trough O
Starting Domino effect P