Each time we went to the Home Depot, we would take a few of the Disney paint samples that are shaped like Mickey. After awhile we had enough to create a countdown chain. We took a Sharpie marker and wrote the number of days on each sample, strung them together and hung them up. Each day we'd let our DS6 take one off of the chain.
We're planning another trip for this December. In October, or so, we'll pull them back out and hang them up.