Sensory bins are always good for toddlers and preschoolers. These are a must in a classroom.
I love this idea! My kids are always digging around in my backyard. A play garden for children
A Little Garden Grows...Building a Sensory Play Garden. All child-directed, all hands-on, and so much scope for the imagination...smelling, touching, tasting, playing, and growing! via www.mysmallpotatoes.com