Image imported from derpibooru
Original Description:

“B.U.C.K needs vendors!
Fellow Bronies of the UK, get crafting your custom plushes, your fancy hats and designing your OC art prints; Brony UK Convention is happening, this August, and we need all the sales folks we can get! Don’t be a Flim Flam and come sell your pony stuff and make the convention even more awesome!
Find out more www.bronyuk.org or [link]”

I promised the Chairpony, Saturn, that I would spread word of the demand for vendors at B.U.C.K, however possible, so designed this on Adobe Illustrator. Little did I know it’d end up on the main site!
Print a couple off, number the top left corner of ’em and spread ‘em round your local town ‘like wildfire!’ (Implying you live in the UK, that is.) There’s a publicity competition going on at UK of Equestria, so whoever can spread word of B.U.C.K and the need for vendors best wins three tickets to the convention for themselves and two friends, so photograph your postings and prove your dedication to the Brony UK Convention!

My thanks to the bronies on UK of Equestria that gave some really helpful feedback for the poster design, and also thanks to johnjoseco for their amazing B.U.C.K mascot design.