I was tagged by @felimath - thank you! This reply is awfully late because it took me a long time to come up with good answers; some of these questions are rather hard.
If I were a month, I’d be October
If I were a day of the week, I’d be Saturday.
If I were a planet, I’d be Neptune
If I were a god or goddess, I’d be Athena, I suppose
If I were a sea animal, I’d be a dolphin
If I were a piece of furniture, I’d be an old-fashioned writing desk
If I were a gemstone, I’d be sapphire
If I were a flower, I’d be lilac
If I were a kind of weather, I’d be sunshowers
If I were a color, I’d be periwinkle blue
If I were an emotion, I’d be elation
If I were a fruit, I’d be a pomegranate
If I were a sound, I’d be trickling water
If I were an element, I’d be water
If I were a place, I’d be a musty old library
If I were a taste, I’d be lemon sorbet
If I were a scent, I’d be rosemary and lavender
If I were an object, I’d be a telescope
If I were a body part, I’d be eyes
If I were a song, I’d be J.S.Bach’s Jesu, meine Freude or Simon & Garfunkel’s Flowers Never Bend With the Rainfall
If I were a pair of shoes, I’d be a pair of Oxford brogues in cognac brown
I’m tagging anyone who wants to do this/feels up to it.