Benson and I wanted to base some 40k models like they were on the seabed or the beach, and found Gatehouse Gaming have an awesome supply of beach like basing
SPOOKY Water Effect! Haunted Coastline Beach Bases!
Ocean Miniature Base
WWScenics Army Fine Model Sand, 180ml Tub
How to base miniatures: For Beginners
Basing Miniatures with Sand (Quick Method) - Tangible Day
Beginner's Guide to Miniatures: Desert Sand Bases
Beach Base - Australia
Twisted Brushes: Coral reef Miniature bases, Coral reef, Coral
How to Base Everything: Beach Bases
Basing Miniatures with Sand (Quick Method) - Tangible Day
Ocean Miniature Bases - Canada
Basing sand : r/minipainting
Basing Miniatures with Sand (Quick Method) - Tangible Day
Warhammer 40K Beach Basing Tutorial
How to Create and Paint Coral Basing - Cheat Code