This summer I ran an Art & Nature Journaling workshop at the arboretum here in town. One (of the many!) highlights involved preserving a butterfly that one of the girls had found on the ground in a parking lot. It’s wings were stiff and closed up, so we put it between wet paper towels until it softened, then very gently spread it’s wings. We used tracing paper to hold the wings down and then secured them in place by pinning around them. We let it dry overnight. The next day when we unpinned it, the butterfly held it’s position - wings open. Beautiful. We lay it in a flat box to later be glued into for display.