After upgrading my Engineering, I sent a guild call out to let any miners and herbalists know that I had a nice pair of Mist-Piercing Goggles waiting if they sent through the mats.
Of course I’d neglected to take into account the fact that the new crafting mat Spirit of Harmony is BoP. Ugh. So no nice crafting for my guildies.
People have been asking for the SoH’s to be made BoA, which would be nice. Even nicer would be BoG – Bind on Guild. That way you would encourage guild stickiness, and give guild crafters some nice kudos.