As rich as the Collin's family were, it's sad to see only a few toys scattered here and there in David's room.
The "Chicken Little" item looks like one of those "Rub On's" that were popular back then. You would rub on various characters to a stiff piece of cardboard, and they would come with various phrases. I had a Rowan and Martin's Laugh-In one. As for the posters on David's wall, I can tell you exactly what they are. They are not Garfield, but are Rock and Roll Fillmore West Posters from 1967. At that time, Bill Graham ran two Rock clubs on the west and east coast. Those Rock posters are highly collectable today. I have reproductions on both of those posters that David has in his room. Some of the groups featured on them were, Cream, Paul Butterfield Blues Band and others. What in the world David is doing with them, I haven't a clue!! I guess Sy Thomasoff thought they looked kind of spooky with one depicting a wizard, so he thought they would be perfect for David.
In 1967, David had the Major Matt Mason Space Station in his room as well.