She used an salvaged window frame bought on the cheap and used free wallpaper samples to create this pretty panel. There's so much you could do with this!
Get the instructions from CraftyNest
I've been doing this for a couple years now - I buy and/or collect pretty postcards or greeting cards, frame them (they don't have to be expensive frames), and then hang them in groups. It makes for a nice "arts + crafts" look
frame a tea towel
I also do this - if you can bear to rip plates out of an old artbook - frame them.