I collected plates from Target, Pier1, Ikea and TJmaxx. A lot of them are melamine (the hard plastic stuff), and were less than $2 each, and others I already owned. Definitely a budget way to decorate a wall.
I bought these bad boys from Walmart (around $2).
Then I laid the plates out on the floor so I could see how I wanted to arrange them, and then took a picture so I could re-create it on the wall.
And then I clipped the hangers onto the plates and hung them on the wall! You don't even need a hammer, the nails/pins that the plate hanger comes with just poke into the wall. So easy.
Viola! Not your grandma's plate display!
Here are some other pretty examples I found on Pinterest. (Psssst... follow me if you don't already!)