Surplus eggs are a good excuse to get to eat lemon meringue pies.
Also, I keep meaning to try making my own deer repellent for the garden. Lots of the purchased repellents show eggs as an ingredient. I wouldn't spray it on the plants (who wants rotten eggs on their tomatoes), just the soil and weeds around garden edges.
I sell to a few people I know. Craigslist here seems to reveal a sort of egg selling territorial price war with people getting mad cuz folks copied their ad, and I'll let them have that. I think for legal sells here I'm supposed to get a candling license, grade, etc. which I'm not gonna do for 2.50/doz., which is abt. what people get here if they have a lot to sell. Plus, I'm not gonna give my neighbors who could have starred in Deliverance an excuse to case the joint or even waste my time for 2.50. Not going to drive long weekly delivery routes for that, either. Or any price, really.
I did, however, ride through a subdivision that's on my way to everywhere and give away some eggs with my ph. number to a safe looking lady out gardening. Have also thought of giving some away at houses on the roadside in exchange for cuttings of camellias or whatever.
I also give eggs away to my tenants, as well as freezing some for myself, and feeding a lot to chickens. And I put a few in for my vermicomposting redworms which are great for breaking down chicken litter into compost. I do not feed earthworms to chickens due to gapeworm and other parasites. I guess the grubs are OK so I give those to the flock.