You will need a “dummy” person to stand next to the button. It can be any kind of humanoid. Below is a quick list to help you master with the golden crown.
Set 1: Man
Set 2: Woman
Set 3: Police
Scribblenauts Remix 2-3 Cheats Hints gallery:
2-3-1-a: The gate is broken but you can raise it!
2-3-1-b: Find the button that controls the gate.
2-3-1-c: Lean a heavy object against the button to keep it held down.