To be fair, Derren Brown would be a hard sell (unless someone's feeling generous), as one can obtain his authentic autograph for free via email.

Hey I am selling my charity autograph collection off on ebay for the Southampton Hospital Charity Neonatal Unit whcih cares for special care babies.

Currently on there I am selling Derren Brown and Vernon Kay authentic autographs.

Derren Brown listing number : 120566932667

I will also be seling my other charity items which can be found in my sig! Any offers also welcome pm me!

Thanks