My suggestion is Challenges, Each of these challenges (if completed) will reward you of 1 Grass and a bonus item Such as an extra 2 grass for harder challenges and 32 cobble for easier challenges, This could be done by typing the commands /Challenges <page> /Challenge Complete <challenge number> Ect. I think this would be a great addition to Skyblock as grass is super hard to get and there are many scammers out there!
Well, this would work for people willing to do work; yes. But for players like myself, I would much rather get grass in kits or buy it.