Hi a warm welcome to silkysteps, there's a development planner here which adapts nicely once you've found your idea and this download enables planning, observation & evaluation of a focus activity xx
Creative activity planning sheet or physical activity sheet example or sample forms change for physical activity, personal, social & emotional, communication & language ..
There are also some good mark-making messy activities that the summer time outline set supports - with forum suggestions here or how about noise shakers? could you plan a treasure search outside for twigs, pebbles, leaves and other pieces that would add sound to the children's own tubes?
Best wishes with it, enjoy the site :) xx