EDIT: Post-ninja'd, but regardless, ... :
List of non-functional statues for reference.
That eyeball statue looks interesting. It looks like it could spawn the most difficult Eye-related non-boss flying eyeball creature.
I had an oddball thought that the Bow, Boomerang, or Sword statues could spawn projectiles which could be used in conjunction with other trap-related things. Base defense stuff, really. But this feels a bit too silly to me.
Some of those statues look like they could spawn a biome around them, like the mushroom statue or the gloom statue, which would spawn either corruption or crimson, depending in your world.
The pot statue would act like a pot has just been shattered, and give you some random treasure. But this is SEVERELY too powerful, and I urge you to kindly pretend I never said anything.
The Potion and Shield statues look like they could give you a temporary buff. Just like how we place heart statues in boss arenas for a quick heart or two, those statues would give very temporary but useful buffs. Not too sure what
kind of buffs though, to be honest. Regeneration and Ironskin buffs, I suppose. Eh.
The Sunflower statue could be a decent area-neutralizer, acting essentially like a whole bunch of sunflowers all at once, negating effects of the Crimson / Corruption.
The Goblin statue should spawn a Goblin. I'm surprised I didn't think of that earlier. Like four years earlier, really.
Same with the Hornet and Imp statues. (The fire imp from Hell, that is.)
