In Japan, the alpaca may be a witness at a wedding. It is such a fun service offered by the hotel Epinard Nasu in Tochigi Prefecture.
Animal lead from the nearby zoo and after the ceremony, you can arrange a whole photo session with it. The Japanese began to formalize the marriage up to the late 19th century and before that, a married couple were regarded a couple in which the man was often a guest of the woman. So alpacas aren’t considered strangeness.