Hello, Lucky!

Glad she made it out, even with the weird-shaped air sack. One on my last hatch also had a weird-shaped air sack too - that was on the wrong end of the egg. And the chick pipped where the air sack should have been. Made me a nervous wreck, but she made it out and is doing fine.
My hatched chicks liked to pretend to play pool with the other eggs. The pips ended up all over the place. I slipped a wet sponge in to increase humidity and rolled the pips back to the top as needed.
The o ring thing might work, as long as no one can eat it or get it around their necks.

I had a slightly staggered hatch last year, chick 1 and chick 13 were exactly a week apart. That poor last egg got knocked here and there, and into other eggs. I was afraid it would get cracked. It also didn't get to be locked down properly with the no-turning thing because the hatched chicks wouldn't leave it alone... he turned out fine. At least you don't have another egg for this chick to roll the pipped egg into so that's a plus.

Hoping the second chick is out by now!