You're My Favourite Pain In The Arse Keyring, plus name £10.00 Personalised details to add?: please leave a note of any personalised details you would like adding 100 characters left. Quantity: at £10.00 each Add To Basket You're my favourite pain in the arse keyring with personalised name. 30mm x 1mm engraved stainless steel disc. Leave a note of the name you would like adding to the bottom of this keyring.