Here's a really cute idea. Frame quote bubbles, use a dry erase marker to write funny things your kids say. When you are ready to switch the quotes, have the child take a picture with their quote and make a photo book of quotes. Our own quote board?
"I love you, the same way I learned how to ride a bike; But Reckless. - with no training wheels, or elbow pads, so my scars can tell the story of how I fell for you." - Rudy Francisco__I LOVE this quote!