questions in the Sega Dreamcast/Naomi Community

What if some games that released on the GameCube, PS2, Xbox and old PCs did appear on Dreamcast?

Please help me find these Rhythm Heaven plushes. These were released alongside the Sega NAOMI/NAOMI 2 (Arcade) version of Rhythm Heaven alongside some 3D T-Shirts and strap pillow cuhsions. These look beautiful and I desperately need to buy these.