Looks like I got the name wrong, I was actually thinking of the buzzards in Disney’s “The Jungle Book”. Looking them up, their names are: Buzzie, Flaps, Ziggy, and Dizzy, so “Bert” wasn’t in it. Not the first time I’ve messed up names.
I keep a cup full of those things to protect the tops of the food that I’m reheating in the microwave. Useable over and over, and I’m sure that I’m “saving the planet” by keeping them out of the landfills.
With wine accompaniments!