Lost Keychain near Shinagawa Station, Tokyo, Japan

Lost a plush Nara deer keychain charm made of tan and brown soft fabric with embroidered black eyes, white snout, small white antlers, yellow spots, and an attached silver ball chain, likely around Shinagawa Station, on the Keihin-Tohoku line between Kamata and Shinagawa, or on the Odaiba Rainbow bus 2.