To generate a European Onion, select one or two national flags, and a regional flag. An Onion will automatically appear. You can then drag and resize the flags to adjust them.
The European Onion is a way of thinking about identity in the context of an ever more integrated Europe. Just as our strong attachment to national identity does not detract from our regional and local identity, identifying as European does not weaken our sense of national belonging. They're like layers of an onion, if you will.
This website allows you to generate your own Identity Onion by selecting one or two national identities and a regional identity. Try it out and see for yourself.
This idea came out of Astra Europa, a new centrist Eurofederalist party, check it out if you're interested in European politics.