Funko Bitty Pop! Sanrio Hello Kitty and Friends Countdown Calendar Count down to your favorite festive holiday—or any special occasion—with the Hello Kitty™ and Friends 24 Day Bitty POP! Countdown Calendar! Open the tiny doors to reveal 10 Bitty POP! collectibles, 9 stackable display pieces, 3 holiday accessories, and 2 keychain cases. Expand your Sanrio® lineup by making this Hello Kitty™ and Friends 24 Day Bitty POP! Countdown Calendar the next addition to your collection. Bitty POP! collectibles are packaged in hard acrylic cases with detachable bottom lids. Detachable bottom lids double as acrylic bases, to which the Bitty POP! figures are adhered.