[wdfifteen]

I would tape and mud over the joints. Get a 3 lb tub of drywall mud and some mesh tape. Tape the joints and let it dry. Then put some mud on a board and thin it a bit with water. Stuff 4 or 5 plastic grocery bags inside another plastic grocery bag to make an applicator. Tape off the wall so you don’t get any mud on it. Dab your hillbilly applicator in the thinned mud and stomp it on the ceiling. You may have to experiment to get the texture you want. If you put up something you don’t like, wipe it off and start over. You can make it look great for not much $$ if you take your time.