The FTB Forum is now read-only, and is here as an archive.
To participate in our community discussions, please join our Discord! https://ftb.team/discord
try tekkit customizer, it is a bukkit plugin, you can ban items as uncraftable, unplaceable, or unusable, by entering the item IDs, make sure you add the subset if needed as it will default to the whole ID if not.
Essentials + GroupManager works really well also, it's what I'm using at the moment. Can do the same things as tekkit customizer via permission nodes, which allows for different settings per group, user, and/or world.