You might be able to use some self-adhesive hooks, but the paint on the wall is a bond-breaker. No matter how good the adhesive is on the hook, the paint may very well peel away.
Perhaps you could get some floor stands.
How about the ceiling... can you drill on that?
if so... hang 'em.
Perhaps you could get some floor stands.
How about the ceiling... can you drill on that?

