For Stuart's beastie class he has to kill bugs and pin them to a board. Our living room is a bug mortuary right now.
Surprisingly there's a lot more to it than just skewering pretty butterflies to a board. He has to open up their wings because when they die they pull their wings up, like when they're sitting on a leaf hiding. It takes some skill. I think the butterflies will look pretty in a shadowbox once he's done with them.