These are ornaments from the Royce' chocolate advent calendar released in 2024. They feature characters like the Long-tailed Tit, Owl, and Deer. They have been stored in their original bags except for when they were taken out for photos. The tallest character, which appears to be a polar bear (Shiroten?), is about 4cm tall (photos 2 and 3). Each has a hole (about 1.5mm in diameter) for string, so they can be used as Christmas tree ornaments. Please note that the colors may slightly differ from the photos.