China Plate Wall Displays: Cheap and Easy!

Plate walls are simple to make and cost next to nothing - they are also no longer limited to kitchen or living room walls...

But I don't have any plates!
 Find them at yard sales, thrift shops, or online. 

I don't know where to start! 
To coordinate plates with your room, pick a color from your room's  decor - your rug or curtain fabric, and go from there. Or, you might want to contrast