Welcome from MI!
I was able to get new vents for my sky when I had the same problem of crummy looking vent covers. Pretty easy to replace, actually.
Open hood Remove the hood blanket
Remove the two Pawl nuts (I think that is what they are called) from each vent.m if they are installed
Relieve vents. I used a heat gun to soften up the tape the old vents are held down with and they peeled right up with some of a plastic trim removal tool.
Clean the surface with isopropyl alcohol.
My replacement vent covers were new, so they had factory applied tape. Stick ‘‘em down, and install the two nuts to keep them in place. If your two current vents don’t have the nuts (mine only had one installed on each) you can find them at your hardware store. Without the nuts, your vent will likely start to peel up due to the curvature of the hood.
Re install the blanket and close the hood.
Stand back and admire your handy work then go drive around showing off your new stuff.
There's a couple on eBay. https://www.ebay.com/itm/253363291093fits=Model%3ASky%7CMake%3ASaturn&hash=item3afda103d5:g:uB8AAOSwI79iETT~&amdata=enc%3AAQAHAAAA4PaVw%2B68CeeAnMHuoN3JwVGJWYv%2FCQ61mcHX6ig8UsqgXee4gj%2FjrcF%2FMM6ODu%2FddbIWpvVMvzVsMzbSZmUC97UzhdP44yYcWt9bzzLhA%2FPONzmd8r8Uuvp4csU23uRIglqU0ugsVBAhCXCDIZFa%2BK5V4VFIK2%2BcQgUn9LRL6yRKNJeKWsL59HH%2BWs3878fLXHjgODD65qTGMU%2FpurKnpGTaVL1AxeyrFq7%2By8StRXzjPEvpdzLk6ZB%2FSJVtCHhD0utFvhrrDAVr44VPpIt8GKO%2BmUWJMRVufu0CB3w5OxmZ%7Ctkp%3ABFBMjtS7_ZxgSounds great. Where did you get your new vent covers?............Paul