I am a teacher: Super Mario Sweater

I am a Teacher: Super Mario Sweater (「アイアムアティーチャー　スーパーマリオのセーター」　Ai Amu A Tīchā: Sūpā Mario no Sētā) is a Famicom Disk System game released on August 27, 1986 only in Japan. It was devised by Royal industries Co. Ltd., a Japanese appliance and sewing machine company.

The company realized that they could make a lot of money by releasing a sweater-design program, which led to this game. Players could design the sweater they want, putting pictures of famous characters such as Mario, Luigi, Peach and Bowser on the sweater and then the company would make a real-life version for 2,900¥ (about $24 in United States Dollars).