Among the pieces on display is a miniature recreation of the Didcot road sign prank that first brought him widespread attention.
The original installation aimed to challenge Didcot’s reputation after it was described by researchers as the “most normal town in England” in 2017.
“I just wanted to turn that on its head,” he said.
“This idea that Didcot is normal – it clearly isn’t. There isn’t such a thing.”
At the time, Oxfordshire County Council said that, though the signage was amusing, it was “vandalism” and had the potential to distract drivers.
Turning things on their head has remained a hallmark of @Athirty4’s work, whether it involves installing light switches on post boxes or creating garden gnomes supportive of low-traffic neighbourhoods.
“I like to burst people’s bubbles,” he said.
“They might be walking along the street – doing their shopping or taking the dog for a walk – and suddenly they see something of mine.
“For a second, they’re taken out of their world and into something else – questioning what they’re looking at.
“It’s a bit like a magic trick. It’s about surprising people.”
Despite his growing profile, @Athirty4 has kept his identity hidden – appearing masked during interviews and avoiding publicity, in the vein of Banksy.
“After the road signs, it got so big it pushed me to be more ambitious,” he said.
“I did things that were quite risky and irritated quite a few people, so I thought it was wise not to show my face.
“And in an age of selfies and all that nonsense, I want to be the opposite. I’m not interested in that.
“Plus, I’m not that good looking.”