This boat I made 10 years ago. Size of the paper was 1.5 mm x 2.5 mm, and the dimensions of the boat are approximately 1 mm x 1 mm x 2 mm. With this boat I applied for a Guinness Book of Records, but unfortunately I am not registered.
They answered me that they are not sure into which category to put it!? they are not sure about the condition of boat because it is a paper work and microscopic scale, they are also not sure am I did it. They gave me the option to pay a commission (plane ticket, hotel and daily allowance), but it was too expensive for me