Save sand from vacation to make a frame mat - maybe cut out inside the heart and put a picture?
Sea glass fish, but you could paint rocks like decorative fish and put in the shadow box as well including little rocks for bubbles!
Hey, I found this really awesome Etsy listing at https://www.etsy.com/listing/199936280/sea-glass-and-pebble-sail-boats-by
Pebble Art of Nova Scotia (Sharon Nowlan) - with seaglass
Whimsical Seaglass Seagull - Make Waves - Original seaglass seagull with watercolor and hand lettering
Hey, I found this really awesome Etsy listing at https://www.etsy.com/listing/230955056/8-by-15-sea-glass-fish-on-the-line-by
5 x 5 Mini Kies und Meer Glas-Bild von Sharon nowlan von PebbleArt
Scottish pebble art picture: beach fisherman
New Arrival Contemporary art work. Finished Frame size 45 x 45cm 3.5cm deep Would make a unique gift for a baby shower. Due to the fragile nature of this work, shipping includes insurance to the value of your item. We are happy for you to collect your piece, we are located in Woking, Surrey. UK