While this isn't Montessori per se, we've decided to incorporate our own little version of a Waldorfy nature table. I think this a great way to be mindful the season we're in and aware of the changes going on outside, bringing pieces of nature indoors. We just have this tiny little table, draped in a playsilk (gonna grab on to three other season-appropriate colors for the future), with some random findings from outside. The flowers are from our front yard! The peonies make the whole house smell the like candy!