We've been tripping over them for months here in Paul Fraser Collectibles' hometown of Bristol, UK.
The gorilla statues painted in a range of lively colour schemes by artists, celebrities and local groups, reminiscent of a number of decorated elephant sculptures that sold for £1.8m in London last year.
And at last night's (September 29) charity auction in the city, which raised £427,300, it was a gorilla in the guise of one of Bristol's adopted sons that attracted the most attention.
Gorisambard, fashioned to resemble Isambard Kingdom Brunel - the man behind Bristol's famous suspension bridge - sold for £23,000.
Gorisambard has stood proudly next to his suspension bridge for the last few months, and has been a highlight for many of the "Gorilla tourists", who have made it their job to track down every one of the 61 Wow! Gorillas scattered around the city.
They were produced to celebrate Bristol Zoo's 175th anniversary, with proceeds from the auction going towards Wallace and Gromit's Grand Appeal and the zoo's gorilla conservation projects.
Auctioneer Andrew Morgan commented: "These wonderful gorillas have been a spectacular success and I was delighted and honoured to be asked to auction them.
"The lucky bidders who bought a Wow! Gorilla will not only be directly supporting two excellent charities, but will be acquiring a lasting and valuable work of art."
Other notable gorillas included a depiction of Elvis, which sold for £10,200, and a life-like work by up-and-coming local artist Arianne Wolodarsky, which achieved £11,500.
Arty gorillas are not a new phenomenon to Bristol.
Earlier this year we reported how a much-loved Banksy gorilla stencil had been whitewashed by unsuspecting community centre employees in the city.