Toddlers like to draw with short, fat, unwrapped crayons. Let toddlers tear old wrapping paper. Then have them paste the pieces to make a collage. Have toddlers finger paint with shaving cream mixed with food coloring. They like this mess.
Toddlers like to jump.
Put pillows, cushions, or a mattress on the floor. They can use some swings and low slides at the playground. Most toddlers are just learning how to walk and run. Go for lots of walks. Let the toddlers practice climbing stairs with your help.