I still can't believe they are 2. It's just flown. Messy play is very unstructured here - DD chases DH around the garden while he's watering and waters whatever takes her fancy. Today it was the cat. Can you get a pair of puddle suits for them and let them loose with shaving cream? That has been a real hit at our playgroup and any kind of water play. When I'm on the laptop I'll PM you a link to some toddler busy bags you can make up - I'll be doing some for Miss L this week for some more structured independent play