I have attached two sources for the video demonstration of how to make a snow globe. Please click on both links and see which one is more helpful to you.
How to Make A Snow Globe
Step 1: Select a jar
Find a small, clear glass jar with a secure lid.
Step 2: Find a figurine
Select something to put inside the jar, like an ornament, a figurine, or a miniature toy. Or sculpt your own decoration out of clay. Whatever you choose, make sure it’s waterproof.
Step 3: Measure the snow
Measure the white glitter you’ll need for the globe by pouring it into the lid. Set aside enough glitter to fill the lid.
You can grind hard-boiled white eggshell into fine pieces and use that in place of glitter.
Step 4: Secure the scene.
Glue the decoration to the inside of the jar’s lid using aquarium silicone sealant. Let it dry for at least 12 hours.
Step 5: Fill with water.
Slowly pour distilled water into the jar until it almost reaches the top.
You can make your own distilled water by boiling tap water and then letting it cool.
Step 6: Add glitter
Add the glitter and one-eighth of a teaspoon of glycerin to the jar.
Step 7: Attach the lid.
Screw the lid onto the jar, turn it over, and give it a shake. Add more glitter if needed.
Add a drop or two of food coloring if you’d like.
Step 8: Seal the lid.
Squeeze a thin layer of silicone sealant on the threads of the lid before screwing it on tightly.
Step 9: Display it
Glue your snow globe to a base, like a wood block or small, upside-down bowl. Ta-da! You’ve made a snow globe.