How to keep a child busy for hours in the summer: DIY: Giant Ice Cube Awesomeness - filled with plastic animals, dinos, and such. And I'm sure you could put in food dye before its frozen to color it like the ice block in the photo.
At 10 months actual age and 7 months corrected, our little preemie babe born at 27 weeks is sitting up independently! It took some time obviously, but my goodness – is being able to sit up ever a game changer! And not only for him and his play