After he died earlier this year, his daughter Jenny put his work on display in a bid to have his efforts recognised.
Alexandra Thyme festival organiser Kathi McLean said it was appropriate to show the works as they fitted in well with the recycling theme of the festival, Mr Aimers having used recycled metals for his work.
The collection is titled "Gordon's Whimsies".
About 20 people turned out at the Packing Shed and Art Gallery for the launch of the exhibition, which will run for the next two weeks.
Mr Aimers served with J Force in Japan at the end of World War 2.
After the war, he travelled through Europe and settled in England for about 10 years. While living there, he was inspired by the art movements of the time.
He socialised with the underground art crowd, frequenting Soho in the 1960s.
Returning to New Zealand in the mid-1960s, he worked as a draughtsman and later as a surface man on the Central Otago Railway.
