I have similar keys in my keyring. Most of is used rarely. Always thinking which key is the right one...so i decided to make own key fobs for these keys. Here is one version...recycled leather of course.
- hole punch
- eyelet setting tool
- corner protectors
Step 1: Cut and Set Corner Protectors
Take a ruler and knife. Decide shape and dimension before you cut. I set my ruler on the leather and made cuts both side of the ruler. After that i straighten both ends.
Set corner protectors and pinch with pliers.
Step 2: Punch Hole and Set Eyelet
First measure diameter of the eyelet and choose hole punch after that. Eyelet in the picture is 8 mm and hole is 8 mm so eyelet fits tight. For permanent installation you have to you eyelet setting tool
Last but not least step is keyring and the key.