Got it on the 3rd serious try (after 2 WTF tries) after 4.5 hours. Much of that time was wasted obsessively maintaining my notes, from my initial thought that each item causes certain actions on others.

I realized that each needs a certain time out in play after maybe 2.5 hours, which quickly lead to my hypothesis, which could have been quickly solved by trial an error. But error's not as elegant as wasting your entire evening making sure it works perfectly as planned.

[SPOILER]
The order to put things out:
Guy Water Seeds ("Junk") Pot Tube Fire Dish Bone Springs Ball ("Round")

Try things in the wrong order to see the consequences.