Here are some options and so you know what you are looking for (lug nut cover):

https://www.amazon.com/tesla-lug-nut-cover/s?k=tesla+lug+nut+cover

Here is a cheap option for what you need: https://www.amazon.com/Mtsooning-Styling-Protection-Protector-Plastic/dp/B07G8H7KP1/