It's all chance/luck...I was REALLY unlucky on some (over 50 boxes).
Since you're a member again do MISSIONS. You get double crafting items.
MISSIONS.
http://superherosquadonline.wikispac...ions+%28FAQ%29 I added a pictorial to our wiki's FAQ page. FFF ALSO auto-destroys pests (troublebots, imps, and eyebots) in zones AND scares critters (pigeons, dragons) in zones AND you can summon him to help you fight in missions AND allows any of your heroes to fly in zones.