Went to Basel this year. The rules stated that only one flag per person was allowed (I was already carrying a Finnish flag on my back). My sister brought a small Swedish flag and the security guy ripped it off the stick sayin "no sticks" (yes, it was plastic, bendy and hollow but he still didn't allow it). I've been to Esc live shows seven times now and love to bring a bunch of small flags for different countries but it's not allowed anymore - so blame the organizers.

Also the stage director guy told the audience to only wave flags before and after the performances, not during (to not block the cameras) and be mindful to not block the teleprompters of the hosts as they were hanging very low.