We worked with glitter yesterday in a controlled environment. Today, students shook the glitter from their projects into the trash. Two students then inexplicably lifted the trash can up and dumped it out (no, they have no idea why they did it) I'm making them clean up the glitter with tape and wet wipes. Too harsh?
I do definitely like glitter. I do not think your consequence was too strict. Maybe write them up to the administration as well.
Definitely not too harsh! I had one student who had a problem with throwing things in class. He is no longer allowed to have his backpack or binder at his seat and I made him clean up the floor after school for two days. He no longer throws things in class.
That's one reason why I'm glad we don't have carpets! We can easily sweep up glitter. Of course they should clean it up themselves. You do the crime, you do the time!