Check out Craftiments: Beachy photo in a bottle. It's a super fun way to display your summer beach photos.
Beautiful Beachy Projects with a Farmhouse Flair (The Cottage Market)
Simple DIY Seashell Candles// maybe not seashells, but I like the transferring a candle idea!
Recycle your bottles and make them into something beautiful
Beads with shells
Don't know whether to put this in 'hearts' or 'beachcombing' DE GULLE AARDE: een hartje van schelpen