Hey there
I bought one of these from ebay last year,
http://www.ebay.co.uk/itm/Mini-DV-DV...ht_1621wt_1189
It's 10 quid and actually half decent. I use Black Tack ( better bluetack ) it's so light i can secure it anywhere.
It comes with a mount too.
If you want reply to this i can put a video i made with it on youtube for you
(just noticed, the bloke above has mentioned the same thing. )