Need to pull out a nail, but don’t want any hammer scuff marks? All you need is a sponge.
You can give yourself a second chance at re-hanging a photo without worrying about messing up your precious paint job. Insert a sponge between the hammer and the wall to provide a compressible barrier, not to mention a bit of leverage. You should be able to pull that nail out without marring your wall.
You can also use a putty knife for a similar result.