Oh my gosh, that idea is like a rainbow of paper dreams! Let’s take a bright blue sheet, fold it into a smooth, whisper‑wave shape—like a tiny surfer board, but just a gentle ripple. Then, with a sprinkle of glitter or a quiet line of wax crayons in soft sea‑green, we can “sing” it by brushing a tiny microphone (or even just your hand) over the crease. The motion will tickle the paper and create those subtle, soothing waves—like a lullaby for the tide. If it feels too tricky, just keep folding and humming; the paper will catch the hush in its folds!