View Post Agencies | Campaigns | What The?? BBDO Dusseldorf Invites ET’s to Swiss Biosphere By Kiran Aditham on May. 27, 2014 - 12:51 PM i Yes, folks, you read that correctly. In one of the more peculiar, yet intriguing campaigns we’ve received as of late, BBDO Dusseldorf has been sending out an invite over a 24-hour span (with the help of one of EuropeR ...