We collected twigs before we opened our model magic, and we planned to put the twigs into the nests. However, O didn't like how that looked, so she buried a few twigs within her the walls of her nest.
We left the nests on the porch to dry overnight, and it poured down rain. They got wet, but were ok. We had leftover Model Magic, so we rolled it out and made handprints. Model Magic handprints are SO much better than plaster of paris handprints!