I found this lovely egg carton flower idea from Duitang.com via pinterest. There was only one problem, I don't read or speak Chinese, which is really too bad because this site seems to have a lot of fun diy projects and craft ideas, I love it. Fortunately the site also has some great photos you can work from, so it was pretty easy to figure how to make these flowers.
I decided to create my own tutorial here and just adjusted the steps. I made the flowers differently however, and I think more simplified but mostly because I didn't have all the supplies they had in the photo.
1) Collect your egg cartons. I tried using both flat egg cartons and store bought egg cartons and found that the flat ones worked much better, but you can use both.
Egg carton flower fridge magnets
Spring flower napkin holders. I glued a green ribbon to the flower to create a napkin holder.
You can really get creative with this project and once these flowers are made you can do a lot with them. Add wire as stems to make a bouquet as decoration, or keep it simple and just spead them around on a party table, or get practical use out of them and make fridge magnets.