Currently Bushes and Rocks have the ability to hold down Red/Blue Blocks and Retractable blocks, preventing them from reactivating.
Bushes and rocks are very common items used in decoration, but the power they have to break puzzles is too great. Designing around the fact the player can take one of these from anywhere in the dungeon and plug up some color blocks is extremely difficult.
I propose that Bushes and Rocks should break when a togglable block is activated underneath them.
In addition I think we should still have this functionality when we do want to design around it. So I would like to see maybe an iron weight (or any heavy, sturdy looking object) that would work as the current "Rock" item does. Would be nice if this also had a variant that required gauntlets.