吉祥物 (jí xiáng wù) = mascot (literally 'auspicious thing'). The Beijing 2008 Olympic mascots were called 福娃 (Fúwá), and the 2022 Winter Olympics mascot was 冰墩墩 (Bīng Dūndun).
usage
吉祥 is more formal and literary than 吉利. It's commonly seen in blessings, traditional art, and cultural contexts.
