James Jessiman was 26 when he died of the flu in 1997.

"He was always passionate about Lego from a very young age, he liked manipulating the pieces and putting things together," James' mother Robyn Jessiman said.

"Nothing pleased him more than getting down on the floor in amongst a big pile of Lego pieces and just putting it all together - sometimes he'd be going so fast that he'd pick up pieces with his toes because his hands were already full."

Lego has become a big part of Ms Jessiman's life since her son's passing, and the spark will come alive once more at next weekend's Annual Brick Spectacular.

On November 16 and 17, the Wollongong Lego Users Group are bringing their exhibition to Wagga with interactive displays, tutorials on how to build Lego and places to buy hard-to-find sets with all profits donated to Country Hope.

"The noise of people scrabbling around in Lego is what I used to hear upstairs so these events bring back a certain comfort for me," Ms Jessiman said.

"We went to a display earlier this year in Sydney with the same group who do this event coming up and it's just amazing, it's wonderful."

James wasn't just any ordinary Lego fan - he made a mark on the brand that spread to international shores.

"He was the only person who ever produced a system where you could build Lego models on a computer screen, so virtually, and that was huge for the 90s," Ms Jessiman said.

"It was called LDraw, and it's gone strong ever since particular in America."

In other news:

According to Ms Jessiman, the LDraw group in America hold conferences with keen Lego-users attending to view everything from physical displays to short films made with the program.

"They decided they'd have a memorial for James and people who never even met him wrote to me and sent me emails when he died, they couldn't believe it," she said.

"They have a Lego award for the person who has done the most for LDraw in his name now.

"We went over in 2002 to present the award and that was exciting and a great honour, plus each year they tell us who wins and keep us in the loop."

At the root of James' involvement in the Lego universe was a deep passion for figuring out the way things could be manipulated, Ms Jessiman said.

"I remember one day when he was about seven or eight, he made up this car to show us and we said that's no good on our roads, it's a left hand drive, and so he went upstairs and ten minutes later he came back down and it was a right hand drive - he didn't have any instructions, he just figured it all out himself," she said.

Events coordinator for Country Hope, Tom Looney, said he hoped the community would get on board to support the exhibition.

"It will be the biggest Lego display to come to Wagga, and I am astounded at the interest being displayed by not only Lego enthusiasts, but the general public," he said.

"The Wagga and Riverina community are fantastic supporters of Country Hope and this is another opportunity to help us continue our work with local families and their children."

The exhibition will be held out at The Range Function Centre from 10am-5pm Saturday and 10am-4pm Sunday.