Insect Hotels - Provide a home to pollinators and pest controllers. Tidy gardens, lawns and lack of dead wood, mean less and less habitat for wild bees, spiders and ladybugs. Great collection of photos of examples.
DRAMATIC PLAY AREA - Sue has gotten us a lot of wonderful, new, indoor gym equipment, but at this time of the year, I can't help but "Think Spring". Wouldn't it be fun to build something like this to put in the grass at the far side of the playground?