Have you ever used a pie bird to bake a pie? Pie birds are ceramic and used to vent steam from pies to prevent juices from bubbling over the pie dish and spilling in the oven.
There's a debate over which came first the pie birds or the nursery rhyme about four and twenty blackbirds baked in a pie as they're obviously connected.
I recently baked an apple pie using a pie bird. Here's a video I created to show you how I did it.