One of the two companies that merged to create Mr Sparkle (perhaps a soon to be t-shirt at Tshirtpusher.com) the Matsumura Fishworks company is a large Japanese conglomerate according to the Simsons. Here's what we know about wearing this awesome Matsumura Fishworks Simpsons T shirt : The people who get it are a likely candidate for being your friend. If you like this Matsumura Fishworks Simpsons T-shirt, make sure you check out this funny Lionel Hutz Simpsons T shirt.