Glider dog and his aeroplane

Timo made a series of these aeroplanes. I was impressed with his process. He took himself off and found all the tools he needed and cut out the pieces using flat sheets of polystyrene. He had the 3d image in his head of how it would be and cut out the pieces necessary, drawing the design first on the polystyrene. He made one for his sister, one for his brother and one for his friend who he heard was sick, then he thought he might try and sell some at the next market..
Here he is with his water aeroplane that floats really well with glider dog the second as pilot: