My problem with this is that the painted eggs were painted because they never hatched. They're duds.
'Grandma Phyllis gave us a paint kit for Easter so we could paint old Creatu eggs that never hatched,' said Toby when he first came to us last year.
Pretty sure the deion under the original painted Credit Shop egg pack said the same thing. That, sadly, they never hatched - so they were painted instead.
'Sides that, eggs have pores in them that allow the embryo to breathe. Even if you painted an egg that could still hatch, you'd be killing it. I know we're kind of dealing with fantasy here, but still. A painted egg is a dead egg, no matter how you look at it.