When are the Pot rallies this year? And cool idea for costume

As the title says, does anyone know when the Pot rallies will be this year (U.K)? Also, check out my cool idea for a costume - your free to steal it and make one yourself aswell!
I got the idea from the Takeshi's Castle game, 'Show of Hands'. I was watching it blazed, and suddenly thought how cool it would be to replicate the costume, but instead in the shape of a cannabis leaf! I reckon that it would cost about £20-£30 to make from some quality materials so it will last a while. Also, insulated with some thick foam so it keeps ya nice and warm, with a little stash area for your Herb so you can smoke at the same time! C'mon everyone, I reckon we should make one of these each (and maybe one for a friend as a birthday present?), so that on the next pot march we can really make an impression! We could even hit the newspapers and 6 o'clock news with something like this! Just imagine hundreds of pot smokers walking down london, dressed in a leaf - maybe even made from hemp - joint in hand, ghettoblaster on shoulder blaring out some Bob Marley choons! :rasta:

Show Of Hands:

No comments on my costume? :( :sadcrying

lol whats a pot rally....if we had those in america wed prolly al get shot or something... but anyway uhhhh cool