NYT Connections Blue Group Hint

We’re going to go out on a limb and say this is a pretty powerful visual clue. Will it get you to the finish line? That’s the catch—you still have to find the right words.
Need the verbal clue too? If dolls aren’t your thing, think comic books. Or baseball cards. Stamps, maybe?
Give up? Green came together pretty quickly for us today. But we almost got thrown by that one word that could have been part of that nonexistent fifth group we’ll let you in on later.
Today’s green group answer is Special Edition Adjectives and its words are COLLECTIBLE, EXCLUSIVE, LIMITED, and RARE.