I have a pic somewhere of my son inside the muzzle of one of the Fort Knox cannons. He was little then now 34 and his waist size is double the bore. These are the 35mm type so no search feature.We have several stained glass windows my wife bought from old homes in Europe. I built new wood frames for them and sandwiched the glass using plexiglass to protect them.
they are each unique and enjoyable.
Getting back to cannons, I love the low frequency pressure wave from a cannon.
The cannons in the fort in Bucksport Maine were never fired in war. They loaded one up once and fired it and it broke house Windows up and down the Penobscot River.
That would be fun