Soundwave was one of Magatrons most trusted servants, and I have re-created him to the best of my ability in lego form. He has custom stickers, an alternate tape recorder mode, and even has three members of his team of cassettes: Laserbeak, Buzzsaw, and one that I forget the name of but I know it turns into a cougar.
About this creation
Soundwave in his tape recorder mode, front
Soundwave in his tape reocorder mode, back
Soundwave's cassette team in their alternate cassette modes
Cassette team in their robot modes
Laserbeak inside of soundwave (yes, all the tapes fit inside of him)