The National Lottery unveils Fingers Crossed installations at Wembley

National Lottery operator, Allwyn, is unveiling a series of installations using its crossed fingers icon to “celebrate the power of optimism in bringing the country together,” it says.

The blue universal symbol of hope and good luck will be appearing across the UK in England, Scotland, Northern Ireland and Wales over the summer months as a symbol of the power of positive thinking.

The first is a seven metre tall ballon-like structure - which represents a metre for each new millionaire The National Lottery makes on average every week.

It was suspended above London landmarks that have benefited from National Lottery funding, including the Natural History Museum, Old Royal Naval College, the O2 Arena and Wembley Stadium (pictured).

A study of more than 2,500 Brits by Allwyn found that national milestones – including major sporting and musical events – play a powerful role in lifting optimism across the UK. According to the research, 62% of people say they feel more hopeful when the nation comes together around a unifying event, with bouts of good weather (71%) and major sporting moments (67%) particularly potent for boosting national levels of optimism.

Andy Carter, senior winners’ advisor at Allwyn, said: “The National Lottery changes lives every day. It’s not just the person with the lucky numbers that benefits, it’s also the good causes who receive funding and the shop keeper who sells the winning ticket. It all starts with hope.

“We’re fully embracing this wave of optimism. For anyone who has their fingers crossed for things to go your way, we hope that seeing our installations brings a renewed sense of optimism and inspires you to believe it could be you.”