Just got cloudy in here...Just do it yourself.
A few years ago, my flag was worn and tattered as well, and I was talking to a patriot I knew. He said as long as you have a "semi-ceremony" with witnesses (his exact words) and have the flag folded properly and consumed by fire, you're golden.
We invited a few friends and family, cooked some burgers and dogs on the grill, had homemade ice cream and about dusk, built a fire. We all gathrred around, each one of us took turns talking about what the flag and feedom meant to us. Then, we folded the flag properly, talked about what each of the 13 folds stood for, had a word of prayer, said the pledge of allegiance and sang America The Beautiful as Old Glory was consumed by the flames.
It was a very wonderful, beautiful and somber event. Lots of tissues accompanied the flag in the fire.
https://www.military.com/flag-day/meaning-behind-13-flag-folds.html