My 6 year old wants me to invite her whole class to her birthday party. I don't have enough chairs and table space, so I'm wondering what kind of project can they do on the floor, on carpet? No markers or paint!
You can rotate groups so that only a certain number are at the table at any given time. Cupcake decorating is cheap and would probably be pretty popular. The other group can be sitting on the floor playing pass the present around meanwhile.
I’ve got great crafts for that age from oriental trading (website) tons of options that don’t need glue or paint. One year I did purses that the kids laced and decorated with stickers, another year a mini garden that kids put together, came with everything self adhesive. Search the site, lots of options.