Playoff Honors RC #/425...It's my understanding that it was a retail only card, so that explains why I can't find one.

Sweet Spot Silver #/100

Leaf Rookies & Stars Longevity True Blue #/75...Also hard to track down. I did find out this card was indeed #'d to 75, and I've only seen one.

Sweet Spot Gold #/50

UD Foundations Exclusive Rainbow #/10...Have yet to see one anywhere.

SP Authentic Black #/10...2 have been on ebay. A beckett member has one, but since there's another Welker collector there who is rather vocal about his desire to get as many Welkers as possible, I don't stand a chance.

Bowman Chrome Blue Refractor #/1...self explanatory.