Clips:
https://www.classicparts.com/1936-63-Wheel-Clip/productinfo/64-905/Take some thought into making this modification secure. You don't want something you created become airborne and travel through someone's windshield.
Original hubcaps have an inner steel cap covered by an outer stainless skin with the stamped "Chevrolet" (1947-53) or bowtie (for 1954 and 55 first). Expensive.
Reproduction caps come in different constructions of materials. If you look closely, you can tell a reproduction from and original.
