Where did Moses put the ram's blood on Aaron at his ordination?

Answer: Right ear, thumb and big toe

Moses put the ram's blood on Aaron's right earlobe, right thumb, and the big toe of his right foot (Leviticus 8:23).

“Moses slaughtered the ram and took some of its blood and put it on Aaron’s right earlobe, on the thumb of his right hand, and on the big toe of his right foot.”— Leviticus 8:23 (BSB)