This is a BuyCraft suggestion actually. I thought of something small which could cause more .Org donations. It's called "/kit wool" that .Net has. I think it'd be a nice addition to .Org. It'd be cool for anyone who buys it and doesn't want to use spawners. There would of course be a cool-down, and it'd give you 16 of each color wool. 16 colors in total.
Don't see that it would hurt the economy of economy. Not enough wool to be gained even in total to upset anything, just makes things a little simpler for some. Support, mostly because it would also support the servers.
To me, the wool economy isn't really one that's "big", people buy as needed, and wool farms will still exist, so I definitely support this!
