These are so easy to put together all you need is the following;
1 - A tall clear glass container.
2 - Assorted shells and starfish.
3 - Clear glass pebbles with the flat bottoms .
4 - Glass fish, I purchased the ones pictured here
from Pier 1.
5 - Cream color see through leaves to look like seaweed. These can be found in most craft stores.
6 - Sand.
Play around with the components till you get your desired look. There's no right or wrong way, only your way to do this! I shifted my sand to one side and angled the fish to make it look like they were swimming. The finished project is below.
Here's what it looks like grouped in a vignette arrangement.