Thrift stores and garage sales usually have
an abundance of large, inexpensive, not pretty art,
And with a little paint and cork board
you can turn it into this:
I used was on hand at my parents house.
The "art" had been sitting in the storage room
for years, the paint was in the garage, and the
cork board was left over from my high school days.
I simply used a craft knife to remove the painting,
cut the cork to size, and hot glued it into place.
I also found this art piece at a thrift store for $7