Hey there! I totally get the struggle with yarn choices—it's like a treasure hunt! I recently finished a beachy rug for my friend's son, complete with vibrant waves and little starfish. I thought I nailed the colors until I realized I ran out of my main blue! It ended up looking more like a sunset than a sea. For your project, have you checked out this cyan yarn? I found some great options that promise not to fade or pill. Good luck with your projects for the craft fair; I'm sure they'll be a splash!