My server has been using this plugin for a long time: http://forums.bukkit.org/threads/me...transmute-blocks-using-blocks-items-185.3318/ Unfortunately, David Diaz has gone on hiatus and is no longer updating his plugins, and it's pretty integral to my server. What I allowed my players to do was right-click interact on a cobblestone block while they're holding an ingot to turn it into the metal block of that type. So they'd hold a gold ingot, right click a cobblestone, bam, gold block. And then I'd be using BlockDrops to make destroying it return the cobblestone an ingot so they couldn't dupe by splitting it into 9 (going to use DropBonus for this now). Now that I'm finally updating to 1.3 though, I haven't been able to find anything that replicates this functionality. Can anyone help?