Re-using styrofoam egg cartons?

[CookieLee]

My DD is in 5th grade and they have started their ecology section in Science class. She is supposed to come up with a good recycling or re-use project to share with the class. We went over several ideas last night and discussed many of the recycling ideas that we already use around the house. She decided that she wants to do something with egg cartons.

I go through a 18-pack of eggs a week and have lots of egg cartons around the house. The best idea DD has come up with so far is to use then as seedling starters - which is why I was saving them. We searched the internet and Pinterest and didn't find any other earth-shattering ideas. A lot of the craft projects are geared to pre-school/kindergarten.

Any ideas?

[Russ]

Some ideas here > Styrofoam Egg Cartons - Recycling & Waste - AltEnergyShift

[nodmicks]

I have some of my jewelry seperated in egg cartoons.

[ladytoysdream]

Find someone who sells eggs with a small flock of chickens. Get a stack of them and try selling them on craigslist. Or go to a farmers market and find someone selling eggs and give them to that person.
I myself prefer the regular 12 over the 18 holes, but I never turn down any free cartons. I pass on to others the ones I prefer not to use. The cardboard ones at a farm store sell for about 40 to 50 cents each plus tax. So please recycle somehow.

I have seen people selling used golf balls by the dozen in egg cartons.

I have also used them for packing material if I have a breakable item to ship via usps.

[freebs]

You can use them as a barter item, sell them, seeds starters, the paper ones can be used for fire starters, use to sort and store beads in, hold change, cube up fruit puree it and freeze in the eggs wells,Store smaller Christmas ornaments,Protect fragile items during a move or when mailing packages, Reinforce the bottom of a trash bag with an open egg carton, store golf balls in, store small fruit like figs, Paint Palette,

[oheoh's momma]

I use them for storage for small Christmas oranaments.......

[Brat]

I used them as ceiling tile...