Yep! They are all over.
Innovations East and West, Living Seas, Living with the land . . . they are NOT the masks, they are a lanyard you wear around your neck and they attach different images for the kids to color . . . a shark, a venus fly trap, etc.
It used to be if you completed all the stations in Future World, you could go to guest relations and pick up a FREE poster from Goofy. Not sure they are still doing that though??