Avenue Q, making yet another return engagement to Theatre Three, is a musical with puppets as stars, but this isn't Sesame Street. Lewd, suggestive and foul-mouthed, these puppets sing songs like "If You Were Gay," "The Internet is for Porn" and "Everyone's a Little Bit Racist." But before you think there's no depth to the show, remember that the original production on Broadway won multiple Tony Awards, including Best Musical. That alone is reason to see Theatre Three's version, even in the relatively small Theatre Too space.