photos of our travels on one wall.
shelves and candles on another wall.
an original painting of the location we were married at on another.
shortly, i will have three panels of a painting i am working on myself.
I hate barren walls so we have them painted bright yellow and are slowing adding things.
You can really put anything on the wall that you enjoy. FOr instance, if you love skateboarding, get a fav used skateboard and mount it like art work.
if you love computers, get computer parts and arrange them on wood/canvas, etc and hang it up. the possibilties are endless!