A lot of my album covers that I really love, I typically make into boxes, that you can put stuff in. This is generally an album that isn't an "OMG I LURV U" album. Another thing that is pretty easy, but requires a little bit of construction, is making a kind of "curtain."
For one record sleeve, you'll need:
2 sheets of super thin plexi-glass, or sturdy plastic sheeting, add an inch on all sides for measurement.. (Hardware places can generally cut these sheets for you, to your sizing requirements) with about an inch
Binder Clips
Round Binder Ring
Drill or Hot Nail
Record sleeve
Plant Hanger (the kind you screw in the ceiling)
Safety Goggles
Gloves
If you use plexi-glass you'll need to drill a small hole in to two top corners of the plexi glass, big enough for the round binder rings to go through. You can also put holes through the bottom two corners, same method.
If you use sturdy plastic, if you heat a nail you can usually push it through on its own, but depending on how thick it is you might have to drill it, anyway.
Center your record sleeve, and seal with binder, wherever you want (they make them clear and all different sorts of colors)
Then, if you want, if you drilled holes in the bottom, you can link them up like a curtain, as long or wide as you need, and it looks pretty neat.
If you screw a plant hanger into the ceiling, it's not generally something a landlord notices, and can be covered up pretty easily when you move out.