Holbrook will be attempting what is possibly the world's biggest yarnbomb this week when they wrap a 90-metre submarine in bright yellow material.

For the past couple of weeks, visitors to the side room of Holbrook's Town Hall have had to tread carefully.

From wall to wall, the floor is covered in pieces of yarn of various shades of yellow, which artists quietly arrange into piles.

The yarn is destined for Holbrook's enormous submarine, the 90 metre HMAS Otway, in a nod to the 50th anniversary of The Beatles' Australian tour.

One of the toiling artists, Wodonga's Michelle Oxlee, says it is also quite possibly the largest yarn bomb ever attempted.

"It's huge, there's no other way to describe it," she says.

"It's not something that you can easily just throw a piece of knitted or crocheted material over it and say it's covered.

"It's a metal structure so we've had to think outside the square about how we can actually attach it."

Yarn has been sent in to Holbrook from people around the world, with one rug coming from Scotland with family emblems knitted into it.

The Beatles anniversary isn't the only reason for the Murray Arts-run project, with the Centenary of Australian Submarines, International Yarn Bombing Day and the Holbrook Sheep and Wool Fair also being celebrated.

Despite the strong community support, Ms Oxlee says yarnbombing is "not everybody's cup of tea".

"Not everybody understands why you would want to do this but it's a lot of fun and it's highlighting old crafts that we've let go and now we're finding new uses for them," she says.

The project will be launched on the morning of Thursday June 12th, with student singalongs, sheep exhibitions and submarine museum tours.

ABC Goulburn Murray and ABC Riverina will be doing a joint Mornings broadcast live from the submarine from 8:30am.

The yarn will remain on the submarine for about two weeks before being donated to local cat and dog rescue shelters.