Attention new crafters and new players...
I'm sure you've seen your fair share of crafting missions that's been totally useless. I'll let you in on a little secret, something every experienced crafter already knows: you can cycle different missions by changing your instances.
For example, I want my companions to gather metals for my underworld trading but often times I get luxury fabrics or companion gifts. I simply change instances by going to my ship and off, different map instance, or simply just logging off/on my toon, it will cycle through my missions. I often get 3-4 metal missions by simply changing my instances twice.
P.S. If you're on the Bastion and want stuff crafted, see our page here.