Martin Clunes and his wife, Philippa Braithwaite, attended the Julia’s House charity event, which raised £40,000, according to a story in the Blackmore Vale Magazine.
“Martin Clunes conducted the charity auction which including two lots he had donated – a walk-on part in the next series of Doc Martin and one of the suits his character wore in the hit TV show. They turned out to be the star lots, attracting combined bids to the tune of £2,250.”
Read the entire story at http://www.blackmorevale.co.uk/Martin-Clunes-Debra-Stephenson-star-guests-Julia/story-23020231-detail/story.html#7eXFBRrMWylOcoTX.99
"Doc Martin" with Martin Clunes Fan 
Hi there, Martin Clunes has kindly donated another walk-on part and meet and greet to Team Emily to raise money to help Emily Skerrett towards the Paralympics – you can bid here: http://www.ebay.com/itm/231350514584
Thank you so much for the information, Chris. I will post it as a story so more people are aware of it.
He has also donated a walk on part to a local disabled dressage rider and you can bid on it here! http://pages.ebay.com/link/?nav=item.view&alt=web&id=231350514584
Thank you, Abi, I just saw your note. I have posted an article on the site about the walk-on part that folks can bid on. Very exciting.