Collect natural things outside, and create a collage on self-adhesive clear contact paper. (notes: be sure you're allowed to collect where you are, don't take too much, and try not to do much damage the ecosystem)
Nature Mandala ~ Take your storytime kids on a nature walk and build a collage out of what you find! Maybe try this as an excursion. Or collect heaps of things from nature, hide them around the room and go on a treasure hunt
Smurfs parties call for forest-y details, like this delicious looking log cake! Decorate one in no time with the help of a step by step video tutorial. (Pssst, this one starts from a store-bought cake roll, so it’s hassle free with maximum impact.