How can I use old pots and pans?

Some make great flower pots.

If you can find any shelters or homes that take in formerly homeless or abused families, they can often use pots and pans to give the families a new start. Places that feed the homeless and others can often use extra utensils. If you know newlyweds who are not prosperous, ask them if they want any of your pots and pans. Also, offer them to large or older families who may not have anything.

Around your own home, even warped pans can be good to catch or divert rain from droughts, or be turned upside down and covered with rocks to form a waterfall. Besides using pots for planters, you can weld several together in a spiral around a piece of rebar to make a planter waterfall.

Maybe something here will inspire you. ☺️

If they are deep enough .make them into planters! They make interesting accents!

If you don't have room or a use for them, donate them. planters are an option, I would drill holes in the bottom for drainage, and they can be spray painted

planters, just add paint or spray paint

planter next to a statue on a wood base

pots with paper and mod podge for your shelves

use them as a terrarium contailer

or with a lamp inside

or....!