Eurostar has a reputation for creative (and effective) advertising in Belgium. The last campaign promoting London through a number of word games linked to intentionally misspelled (John Lemon, Hide Pork, ...) names triggered some consumers into making their own versions (e.g. Pony Blair). Now Eurostar has set up a site where these creatives can 'do their thing' and share it with the rest of the community.
Have a go at it yourself: