Are we sharing our crafting fail stories? Oh, well, I'll do it anyway.
When I got back into PC version after Christmas last year, I had 2 refined already, so I crafted nearly all of my vintage weapons to get the extra 2 and a Soldier token to craft a hat. I REALLY wanted a Spartan or Kabuto or Tyrant's, but I got a Shako, which I came to like well enough. It was only a week or so later that I found out I could have just traded for the one I wanted
Oh, yeah, and I was so eager to craft the hat, that I crafted one of my achievement weapons, so now that I finally got a Spartan, my Shako is untradeable.