I got it off of Amazon. I actually wanted it to attach directly to the fob, but obviously by the picture it didn't work out.

MecArmy CH2 Titanium D Shape Key Ring, Utility Keyring with Screw Shackle, Keychain Car Key Tool Key ring for Everyday Carry https://www.amazon.com/dp/B08B3WVDN3/ref=cm_sw_r_apan_glt_fabc_ZXKTBHEAG73MRGCD0X7Q?_encoding=UTF8&psc=1