I have a lot of abstract paintings in my room. They're not mine though. They're a collection of my parents who have nowhere else to hang them.

Lots of things. A Kramer poster, a backwards clock, a magic eye poster, a Larry Elmore print, a haunted house painting, a chime clock, a painting of Venice.

A poster which reads heisenberg because I am a breaking bad fanatic

Mostly posters and flags in the geeky/gamer/nerd vein, which are taken down and rotated with others every couple years for shits n grins.

Flags of states that my family lives in, paintings my father did, bamboo cutting boards of the states we have family in, family photos, vases with grasses, trinkets passed down from family, movie posters, etc. Basically anything that has meaning to us.

posters (miku), my trans flag, shelves with boxes, games, figures, an pkushies on them, and 7 old motherboards thay i plug my excess cables into

i like my room its so silly

Large abstract stencils. They're available at art stores, but if you can find them at a hardware store they're super cheap. Something like this from Amazon . I didn't use them, I just put them on the wall hanging. Eventually I also got LED bulbs to cast cool shadows.

Check your local library to see if they have a large format photo printer, it's often cheaper than you'd pay elsewhere. Then, print a poster sized portrait of Alfonso Ribeiro to hang up.

I've got art from local artists mostly, some of it is commissioned like my Sasquatch smoking a joint. I also have a fuck load of plants on shelves and I have a tremendous affinity for accent walls.

Three walls with just a light paint, one wall with a color or patterns. I really like the Asanoha pattern (Japanese hemp leaf).

My mom and sister have made many amazing paintings and sketches, so i have those on walls of every room

A lot of mixed paintings. Mostly morbid ones. Many by Beksinski or Pieter Bruegel and some largely unknown artists like Füssli.

On walls should be something that inspires you everytime you walk by. Or makes you happy, or pondering. Whatever that might be.

I collect paintings and other things from estate sales.

Also macrame hangings.

My walls are full of nerdy art I picked up from the artist gallery at my local comic/anime/gaming conventions.

I go for stuff like ruby art's works that I think still look good to non fans
https://instagram.com/rubyart1

Hats

If you're of drinking age, I highly recommend trying a wine & design type thing. You get to see what you'll be attempting to paint when you sign up, so the colors and vibe can be vetted to see which one you'd want on your wall before spending the time and money. But you also get the awesome activity of having some drinks, painting a thing, and maybe meeting some cool people. If you have a partner, it's also an amazing date idea, or it's dope to bring a platonic friend to. And you don't even need to be good at painting because they teach you step by step what to do, and then help you fix it if you fuck it up horribly. My wife and I have a bunch of paintings up in our apartment (3M stuff, no nails) plus some big canvas prints from our wedding. There are also some small seasonal things we swap out. If you have a craft store near you, check out small decorative projects where you do something pretty simple like paint and glue little premade bits together. Here is an example of a basic thing like I'm talking about, but I'd pick something less "live laugh love" and more whatever your personality jives with. Don't be afraid to nerd out and do Star Wars stuff or whatever you're into. The space is yours, so your comfort and interests should be welcome in your home.

I have a poster from here with the text of one of my favourite books arranged as a picture. It's quite the conversation piece. If books aren't your thing, you could always go with the first million digits of Tau, the Streets of Portland, the Constitution of Dalaware or the Kama Sutra.

Find a skateboard deck that you like and hang that up as art.

Art that we've acquired during travels. And a huge map of my city. And mirrors.

Mostly shelves, wardrobes and stuff. Some bike wheels.

Mostly either photos I took or photos of relatives taken by a photographer.

Maps are a great form of cheap wall art, also estate sale auctions usually have alot of wall art for cheap.