Yarn-bombing is now a popular pursuit across the country, but it usually involves decorating things like streetlamps and railings with bunting.
However, some very different guerrilla knitting has popped up in part of north-east England - and it has caused great delight and hilarity among local people.
Employees of the Sunnyfield House Community Centre in Guisborough arrived one morning to find a host of knitted gnomes in the facility's gardens, the Gazette Live reports.
However, they weren't fishing like your average garden gnome. Instead, they were doing naughty things like baring their derrieres and karate chopping each other.
The display was a mystery for a short while, but it was soon revealed that the Guisborough Knitwits were behind the yarn-bombing after they owned up.
Member Pam Wilson explained that they had done a teddy bears' picnic for the community centre last year and got a lot of satisfaction from it.
"We wanted to do another one and make sure that it was something cheerful for the summer - and something a bit cheeky," she added.
The project took a few weeks to complete and each Knitwit put their own stamp on the gnomes, using different needles and coloured yarn for a distinctive effect.
Pam hopes the high-profile prank will encourage more crafters of all ages to join the Guisborough Knitwits.
Meanwhile, up in Scotland, knitters have also embarked on an initiative to create woolly characters - although theirs are not a secret.
Fisherrow Community Centre is holding a unique Knitted Boat exhibition in May and it is inviting East Lothian residents to make knitted herring and other sea creatures to go alongside it, the East Lothian News reports.
Workshops will be taking place so people can get together and do their projects, or characters can simply be dropped off at designated venues for collection.
To find out more and join in yourself, visit customshouse.co.uk/followtheherring.
We'd love to see pictures of the characters you're knitting this spring!