The product description says it all. “With the Maracas for Wii you can enjoy those Maraca based video games as if you were actually celebrating a big fiesta!” Ah yes, all those Maraca based video games. Let’s see, there’s… Harry Potter and the Sorcerer’s Maraca Maraca Kart Resident Maraca 4 Maraca Band Maraca Hero World Tour Samba de Amigo (actually real) New Super Maraca Bros Maraca Sports Resort Maraca Fit Lego Maracas Call of Maraca: Modern Maraca Super Maraca Bros Brawl …and countless others I’m forgetting. Only $11, too! Wii Maracas [Amazon via Toys for Child ]

Here is the original: 
Wii Maracas perfect for Maraca-based games