Now that Article 50 has been triggered, is this what your passport could soon look like?

There are still lots of unanswered questions about how travel will change in post-Brexit Britain, but one thing is for certain now that Article 50 has been triggered - the UK will need a new passport.

The government has issued a £490 million call for the design and production of the new documents, which are set to come into circulation in 2019 - in line with both Britain leaving the EU and a five-year contract for the current burgundy design coming to an end.

While the official passport design has not yet been revealed, designers from across the globe have responded to the news by submitting their ideas for a new ‘Brexit passport’, as part of an unofficial competition by design publication Dezeen.

Included in the imaginative designs are a graphic interpretation of Britain’s weather, a document that features a perforated map of the UK and a contemporary gold-foil concept that reimagines the passport as a suitcase travelling through the borders.

Designer Ian Mcfarlane cleverly referenced the Brexit transition period in his design, which looks like the current burgundy EU passport, but gradually fades into the dark blue, pre-European Union passport.

Adrian Westaway, a designer at Special Projects, created an iridescent lanyard that can be worn around the neck during travel.

The visa pages feature handy translations of popular foreign phrases to help Brits make friends abroad and restore international relations that may have been affected by the Brexit vote.

An entry from Greek/German graphic design duo Billy Kiosoglou and Frank Philippin lists the name of every country in the world, printed in order of their immigrant population. The design, the say, is a nod towards the "continuous comings and goings of people and ideas that form civilisation".

Meanwhile, Dutch designers Tim Gambell and Alfons Hooikaas moved away from the idea of nationality, instead imagining that each town would have its own passport cover based on local symbols and heritage.

The competition received over 200 entries, which were whittled down to a shortlist of just nine by a judging panel of design and architecture experts.

The winner of the unofficial competition, and a £1,000 prize, will be announced by Dezeen on April 11.

Click through our gallery above to see some of the shortlisted entries.