I thought I'd direct the children's interest in butterflies into a science lesson, by having them watch another episode of The Magic School Bus - The Butterfly and The Bogbeast (which you can view online, here).
Of course, we needed some cookies to snack on, during the show.
We don't have a butterfly cookie cutter, so I went back to the girls' idea of heart shaped wings. Well, first, I made a batch of sugar cookie dough, divided out about 1/4 of it to color green, and colored the rest a mottled pink (by adding several drops of red food coloring, and mixing it only part way). I rolled out the pink dough, and cut out the hearts, with a small, heart shaped cookie cutter.
I used two hearts for each butterfly (part of the girls' problem, yesterday was that, they were only using one heart), pressing the pointy ends together in the middle.
Then, I rolled a small bit of the green dough, into a wormish shape, for the bodies.
And, because the Magic School Bus episode is all about how butterflies use their coloring as defensive camouflage, and offensively to frighten away potential predators, I added some M&M eye spots, on the wings.
Which might work to keep butterflies safe, but did nothing to save the cookies.
It's great to be a homeschooler.