I see a craft store trip in the near future. (Bottles are aquapod water bottles). For an ocean bottle use half water & half baby oil with a few drops of food coloring, for a slow motion bottle use light corn syrup.
Muffin Pan Fun and other toddler activities months old ---> O'Courter: When he was around 9 months old, I gave my son plastic Easter eggs and a mini muffin tin. He had a lot of fun sorting them in the tin.