Russell, Grosjean, Leclerc and Vettel reveal one-off helmet designs for Abu Dhabi Grand Prix

Romain Grosjean has unveiled a special helmet – designed by his children – that he had planned to wear for the 2020 Abu Dhabi Grand Prix, while George Russell is using a special design paying tribute to Williams founder Frank Williams this weekend. Ferrari's Sebastian Vettel also has a one-off design for his final Ferrari start, while his team mate Charles Leclerc is paying tribute to Vettel himself with his helmet.

Grosjean's helmet was designed by his three children Sacha, Simon and Camille for his final F1 race, but after the Frenchman was injured after a heavy crash in the Sakhir GP, he is not taking part in the Abu Dhabi GP this weekend. Ahead of the race, he revealed the special design on social media, and said he hopes to use the helmet in a future race.

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As for Williams driver Russell – who returns to the team from his stand-in role at Mercedes as Lewis Hamilton has recovered from Covid-19 – he has paid tribute to the team's founder Frank Williams and former Deputy Team Principal Claire Williams with a design that features all nine of the team's constructors' championship-winning cars on the top of the helmet. The Williams family stepped away from F1 earlier this year after selling the team to an American investment firm.

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Vettel, whose Turkish GP helmet is up for auction, has a chrome dome in Abu Dhabi, as he marks his final race with Ferrari before his switch to Aston Martin next year. In a social media post, he said: "As you can see, it's very glittery because in Abu Dhabi we are racing into the night. Most importantly we've got the Italian flag and the German flag on top and the message 'grazie ragazzi' and 'grazie to Ferrari, Italia, Maranello and the tifosi' written on top."

He also has the number of his Ferrari race wins, podiums and starts printed on the helmet, as he says goodbye to the Italian team after six years.

READ MORE: Vettel pinpoints 2018 as 'decisive moment' in Ferrari career as he prepares to leave team

Leclerc has paid tribute to his Ferrari team mate Vettel with a helmet design that includes the message "Danke, Seb" on the dome, and has images of Vettel and Leclerc set into the number 16 on the side of the Monegasque racer's headgear.

Red Bull's Alex Albon has gone for a cartoonish design for his final race of 2020, as he waits to discover whether he will be retained by Red Bull for next season.

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McLaren's Lando Norris has joined in the action too, with a paint-flecked design that is somewhat similar to the helmet he designed himself to raise money for mental health charity Mind at Silverstone.