A Missouri amputee has become an online star after making a prosthetic leg out of Lego building blocks. Christina Stevens lost her leg in a car accident earlier this year when her foot was crushed while changing the brakes on her car. She has recently become an online sensation because of a video she made that shows her building her prosthetic leg out of Lego building blocks. Christina said she was inspired to make the video after a colleague jokingly suggested it.