Have you thought about selling them without cartons? I charge $2.50-$3.00 per dozen if I provide the carton. If they buy them without a carton, or if they bring their own, it's $2.00-$2.50 per dozen.
I have some rescued hens from an egg house that lay whoppers of eggs, and I'll be getting some that are certified organic soon. The higher price is for 12 of their eggs, the lower price is mixed sizes, which includes silkie eggs and RIR eggs.
I definatly second the freecycle thing, post on your local Craigslist too. I'm getting between 8 and 14 per day from 16 hens, and two of those are broody, moody silkies. All but five are this springs chicks, the other five are at least 1 1/2 years old.
If you're selling them, be sure to put a label (I tape a piece of paper on) over the original information. The label should include your name, phone number, and either "farm fresh" or "ungraded" on it. Mine has both. That way the ag people can't get you and say you're selling eggs without a license/inspection. As long as you have that info, you're good.
Hope this helps!
Emily in NC