These lamp shades slip on as you put the bulb in, they snug up pretty well around the bulb collar.

Makes the outdoor lighting look more diffused and they still give off tons of light!

I made these originally to keep the rain from penetrating my LED bulbs, as you may know these bulbs are plastic and are notorious for filling up with water, ugh!

Have fun with different colors too, I've done Red with PETG and PLA, certain brands of PLA may loose their color quickly if in the sun a lot.

edit: PETG holds up very well in the sun, no warping or discoloration/fading.