Not much of an idea but, I was thinking it would be cool if floating island had a special type of ore in them; example Aluminium Ore. This ore would look somewhat like silver or iron but it would not have the same properties. Instead I was thinking that maybe you could make a vanity set with it or even better. I was mainly thinking about this when I was farming mobs and I was thinking that maybe when refined with iron, copper and silver it could attract items within 5 blocks. Wouldn't it be cool to have small magnets in terraria XD.