OK a bit messy, but lots of fun! Make your own edible finger paint for the kids. Its cheap to make and safe to use and if theres any left over, store it in the fridge or freezer to use for another day.
There are many benefits of introducing your child to swimming whilst they're still a baby, including improved physical development as well as social development not to mention fun! However, the benefit that is overlooked most often is that of cognition or mental benefits which are incredibly important for the development of children as a whole.