No it is Interact, the same people who made the Gameshark!
I have cases like the ones the original poster's picture that I found at a thriftstore a couple years ago. They came in packs of eight of those cases two of each color purple, clear, blue, and orange held either one old gameboy game or two gba games like pictured.
I don't know anywhere you could find those, but your best bet is the 3-pak ones mentioned already or the individual blox on gamestop's website.