Have you ever seen bananas with pictures or words on them?! It is the perfect surprise for a mom on Mother's Day! Have the banana flipped over to the blank side so when they pick it up, they'll see the message! You could also pack one in their lunch for work (if they work on Sundays) and they'll find it :)
You will need a knife so i'm recommending adults do this part but kids can give it to their moms after!
Once you carve out the letters, it'll start turning dark brown which makes the words pop even more! Try not to cut all the way through to the banana part.