fun to use the same bear in monthly photo from newborn to age 1 (or higher). shows baby's growth. This is one of the biggest things we did wrong with baby pics the first time around. There aren't enough relative size things around.
Laser Beam Challenge - Set up a laser obstacle course in a hallway with crepe paper. The crepe paper will tear if the kids bump into it, letting them know they weren't able to get through the course. For added fun, do this in the dark with glow sticks!