Santa was kind enough to bring my daughter Karaoke Revolution, and we've been having a ball with it. But, the microphone looks like it belongs to a 70's cassette recorder. (It's the same style as the Mario Party mics, just black.)
I saw that Konami made a pretty nice looking mic for the PS2, but after Googling the crap out of it I couldn't come up with anything else for the Gamecube.
(Luckily for me, these results are always so small that I could do them manually if I had to) Kirby Triple Deluxe - Nintendo 3DS (The W at Amazon) (05/02) $29.96 JoJo's Bizarre Adventure: All-Star Battle - PlayStation 3 $49.