A Dutch inventor has started work on his next project - a cow drone.
Bart Jansen is best known for turning his dead cat Orville into a drone. His next flying venture aims to see humans riding on their animals in the sky.
"I never know what the next thing is going to be but what I do know is that we've wanted to build a helicopter for ourselves," Mr Jansen said.
"One that we can fit in and we have been thinking about designing one that you can sit on and flies.
"If I'm going to fly, I want to fly in something weird. So we've been thinking about animals that are big enough to fly in.
"We have a cow at the moment - it's at the tannery right now. It's going to be like a bovine personnel carrier, but airborne."
Mr Jansen started collecting dead animals in 2007 for a book called the Observer's Book of Roadkill and began to stuff his discoveries.
He took some taxidermy lessons but admits he's not the best taxidermist in the world and still seeks the help of the professionals when he doesn't have time to do it himself.
Mr Jansen, who describes himself as an artist, has turned rats, sharks and ostriches into flying drones and even made a badger submarine.
"We never know beforehand what it's going to look like, that's the fun thing," he said.
There have been critics of his work. "I don't know who they are, the people that are complaining online. I have 10 neighbours and they all like it."
