I took these photos with a Polaroid, when the girls were just a few weeks shy of their third and fourth birthdays. We were visiting Dave's brother at Christmas time. I really wanted to focus on the left photo - two kids, their uncle and the dog, nose to nose, plotting what to make with the new Tinker Toys (although, on closer inspection, I think Mari was opening another package.) Dave got in the act, and the result was a rocket. I don't know how involved Mari was in the building, but she's the one who became an astronautical engineer; Karin really liked putting pegs in holes. I wound up using all three at the same size to tell the story.
Even though all three pictures were taken in the same basement room, with the same lighting, they were of quite different qualities, and I couldn't make the colors, especially the carpet, come out the same without losing detail. That was frustrating! Supplies are in EXIF file.