I found this pic today! It's from around the summer of 1977 during the summer reading program at the Willmar Public Library in Willmar, MN.
They had a craft project that the kids in the area participated in. Making dioramas or figures based on Star Wars, and if you participated you got a free Star Wars action figure. I didn't know about this before hand and I remember feeling left out. What four year old wouldn't? But I did get to shoot Darth Vader with my handy Ping Pong Ball Blaster! I know that was every kids dream in 1977!