The team have won three of their four home matches when clappers have been handed out to supporters, most recently against Sunderland. That's a winning average of 75%, compared to 40% when they're not used at home.
Manager Chris Hughton said: "We've got to look at every positive that we can. We are very conscious of that, it's all about very small percentages".
The team credited the clappers with helping them to beat West Brom 4-0 in their final home match of last season, avoiding relegation. Commercial Director Darren Venn told Sky Sports News: "We have a whole lot of volunteers who give up their Friday afternoons, they managed to put out 13,000 clappers in just an hour, so it only took 2 hours to put them out".
Mark Israel of Clap-banner Ltd, a west London factory which makes the clappers said: "The demand is growing all the time, ever since they were used in the London 2012 Olympics. They unite fans at an event and improve the atmosphere. I wish Tottenham would buy some, as they could do with a few victories, and I'm a Tottenham supporter!"
In 2005, Norwich joint majority shareholder Delia Smith took to less conventional methods to get the crowd going, walking on the pitch during the interval and urging fans to get behind the Canaries. Smith asked the fans over the public address system: "Where are you? Where are you? Let's be having you. Come on." Sadly for Smith, her impromptu speech failed to inspire her side and a last-gasp winner from Robbie Fowler gave the points to the visitors, Manchester City.
Norwich's new recipe for inspiring the team appears to be more effective. Each clapper costs roughly the same as chocolate bar, but the club say it's worth it, if it helps them avoid relegation.
The clappers will be used on Saturday when Norwich host West Brom. The challenge will be making sure they're not handed out so often, the novelty wears off.