Okay another removed cameo, this time in Mario Kart:Double Dash!!. I remember back in 2003 a picture of a track (what would become Waluigi Stadium) having big banners with the GAME BOY ADVANCE text on them as part of the track banners. When the final game came out they weren't there and I just thought I imagined it. After viewing the original E3 2003 MK:DD trailer today they did in fact exist and I wasn't imagining it!
Also a large amount of the other early banners were replaced, Wario Kart, Flower Parts, Luigi TIRE. The Luigi TIRE one is interesting as it looks like it's referencing Nintendo's "racetrack" style logo.