At least here in Turku isn’t the summer booming in full force, but you still want to enjoy the pre-summer. Why then not drag in som leaves, press them in a plant press (would probably work with just underneath some heavy books). Mix theReady-Mix paint with som Artmedium varnish, that the surface will be shiny. Paint the leaves to look like insects.
Idéa taken from lekolar.fi.