The group unveiled its stand at Lake Albert Foodworks on Tuesday afternoon, encouraging supermarket customers to pick up free handmade bags instead of the plastic options.

Wagga group co-ordinator Kay Thomas said the bags were made by about 30 volunteers with recycled materials such as curtains, sun lounges and unused hospital linens.

"We make all the bags and put our stamp on them," she said.

"It's all about getting people to rethink their use of plastic."

The group meets on the last Saturday of every month at the Pilgrim Uniting Church and has produced 790 bags.

Ms Thomas said the group attracted members from all walks of life, including churches and people who wanted to use their sewing skills for a good cause.

Lake Albert store manager Bailey Porter said she had been happy to get on board with the "great idea".

"I heard about it a while ago in a different town and when I spoke to one of the members, a regular customer, she mentioned it and I thought it was a great thing to be involved in," she said.