As hobbies go, it's not something you are likely to share with too many friend on the grounds of good taste. But that's not a problem for librarian Graham Barker who is celebrating being recognised by the Guinness Book of Records - for collecting 'belly button fluff.' He has saved 22.1 grams of lint - after 'harvesting' it every day for 26 years and has even considered stuffing a cushion with his bizarre collection.