Fake tan help!

[nancy75]

We are going on holiday in a couple of weeks and I have milk bottle coloured legs!
I though i might have a fake tan before going but here's my problem - I have put on loads of weight in the last couple of years and can't stand the thought of stripping to my pants in front of a 7 stone twenty year old so I would like to know does anywhere do a fake tan where you just get in and a machine sprays it at you (with no human interaction)
Does this even exist?
I am in SE london but willing to travel!

I used one a couple of years ago. Was v worried about having a 'Ross from Friends' moment...I didn't I was just patchy. The spray was freezing cold and apparently the trick was to rub it all of after. Well it would seem I didn't rub it off well enough. I consider my self pretty good with fake tan but it was shite. I would much rather do it at home with a spray.