I have 2 keys on my keychain that look very similar. I tried putting them on different ring but I still grab the wrong one sometimes. Instead of buying one of those key covers I decided to improvise. I saw a post on Pinterest about using nail polish to change the color of a key at the top. What a great idea! Why spend the money when I have plenty of polish colors to choose from. Here is the color I picked for my key. It’s a nice bright blue. It works great too. It was so easy to find my key today when I needed it. It seemed to appear in my hand when I needed it. No searching and double checking I had the right key.