or a clear 2 liter pop bottle if you want cheap covers
They break easy but are easy to make new ones.
if you can find a 89-94 lsi or vert it has the aero headlights but with DOT legal bulbs they are not as bright as the sealed beam lights. The adjusters are also badly made on them so they will probably break when taking them off the car to swap over to yours and trying to align them.
I think the clear covers over the sealed beam lights looks better...