alot of festivals this year have been uber harsh, with sniffer dogs at the gates. glastonbury, isle of wight festival have all had them. the best way to get past the dogs is to buy a hydration backpack, one with a bladder. then rap up your shit real tight, then tape it. then wasy your hands and the package. then whack it in the hydro pack, which is full of what ever beverage you like and seal it up. this way nothing can escape from the weed that could be smelled as it is a completely airtight seal. i have a dakine one that is mint cus it has a wide screw top. i used to use it at festivals and rave at home cus they always had sniffer dogs, though that wasn't always just for weed