How do I paint a stainless steel trash can?

clean,and sprat paint with Rustleum 2X formetal

Just use a metal spray paint (such as Rustoleum) Make sure and clean it really good first with a degreaser before painting thought!

I would also put a coat of primer on Before using your desired color.

It sure can! I painted one and used it as a planter.

https://theapplestreetcottage.blogspot.com/2015/06/trash-can-to-planter.html

I painted stainless steel hairpins. first attempt I just used a high quality spray paint but it chipped off. the next attempt I used a quality spray paint primer and then my desired color after I let the primer dry for several days. they have held up well and are used daily. the primer made the difference.

I used a silver spray paint. They look brand new!