Giving a kid a spelling test on homophones, I provide sentences for context. So for sun/son, I say:

“The SUN is shining brightly.”
“My SON is still a young baby.”

Kid:
Me: “Excuse me?”
Kid: “My mom said your baby was a girl but I always see the picture on your phone and I told her it’s not a girl it’s DEFINITELY a boy! Like he’s the most boy-looking boy ever!”
Me: “That sentence was just to give context for your spelling test– it wasn’t true. I don’t have a son. I have a daughter.”
Kid: “Oh.”

(awkward silence)

Kid: “She’s VERY pretty.”