This ended up being a complete failure and went in the trash after the photo. They look reasonable, but two days after forming (and after time in a warm oven that warped my favorite form) they *still* weren't dry and smelled absolutely horrible. I still want to use egg cartons as the base for paper clay and have purchased joint compound to try that recipe.
These need to be sealed and I am working on the plarn cording to make the round one into a shopping basket for the shop. I think these will at least work for shop use and may eventually become something to sell.
Hairpin lace that will be made into ribbon. It may end up being bracelets and may just be available for purchase.
Bag prototype with clear plastic from bread bags crocheted over cabled plarn. Will need to see how it works out.