Bread is what I was told when my little Maltese ate a glass Christmas bulb.

He was fine.
But you do need to be careful and monitor their stool for blood. My Westie got into chicken bones and I thought he was ok - but, thank goodness he had an accident in the house and I saw all of the blood. That was the following day.
He had to have a set of x rays and medication and special food to settle his stomach - but nothing happened like a perforation or anything.
But I often wonder . . how long would it have taken me to figure it out if he hadn't had that accident in the house? I'm glad he did.
So . . just keep an eye out and good luck.