There is a December hatch a long thread and good luck on the eggs! I too built my own incubator and tested it with supermarket eggs and none developed either, although mine were not labeled fertile so I knew nothing would grow but it also helped me tweak my incubatorHi from SE PA,
Didn't know that on BYC everyone gets together to have a hatch on New Years Day, what a great community!
I've been figuring out DIY incubating and have tried 2 batches of GIANT supermarket "fertile" eggs. Nothing became of them on the day 7 candling, but the process has helped me to refine and tweak our styrofoam incubator.
We bought 8 eggs on eBay, and after a week in USPS transit we let them sit at room temperature for 24 hours, and they went in on Friday night. Would have loved to join everyone's New Year's Day hatch, but these will be a Christmas Eve hatch if all goes well. Is there a Christmas hatch thread?
Here are our eggs: