These are two versions of fake or faux terrariums. The first small one looks like a little forest, and the second one looks similar to an underwater pond...minus the scum.
I used miniature bottles from Michael's craft store, lichen + miniature bushes from Hobby Lobby, miniature gray rocks from Hobby Lobby, and clear glue from Joann's Fabric.
The beach versions were actually inspired by candles. One is made to looks like underwater shells, and the other looks like a mini beach.
To make the beach versions I used miniature bottles from Hobby Lobby (The bulb shaped bottle), and Michael's, craft sand from Hobby Lobby, mini seashells from Hobby Lobby, clear Elmer's glue from Joann's Fabric, and food coloring from the grocery store.
They were pretty simple to make, and you can always substitute anything I've used for supplies you already have on hand.
Watch the videos below: