"I thought it was time to bring them into the light, because the message just doesn't seem to be getting through," she said.
The Bangladesh government banned disposable plastic shopping bags in 2002 and countries such as Rwanda, China, Taiwan and Macedonia have since imposed bans, with a number of local jurisdictions in North America, Australia, the United Kingdom and Myanmar imposing partial bans and fees.
Allomes says she hopes her work may encourage Whanganui people to get serious about stopping their own use of plastic bags.
Graham Pearson of Sustainable Whanganui and Coast Care will open the exhibition on Friday.
Truth opens at Fine Arts Whanganui Gallery, 17 Taupo Quay at 5.30pm, Friday May 19 and will run until June 18.