Attach your figurine to the inside of the jar lid using florist clay or silicone sealant. If your wedding has a particular theme, such as birds, include it in your snow globes. Another option is to use small bride and groom figurines or cake toppers. Make sure any objects you use will not dissolve in the water.
Fill the jar with distilled water to within ½ inch of the top. Add several drops of glycerin, baby oil or mineral oil to keep the snow suspended and floating.
Sprinkle glitter or confetti into the water. Start with approximately ½ a teaspoon and increase the amount according to the size of your jar. Crush egg shells with a rolling pin into fine particles to use instead of or in addition to glitter.
Add other objects to create dramatic effects. For example, use a drop of colored oil or food coloring in your wedding color scheme to create a swirling pattern. You can also combine different glitter colors, or inexpensive plastic rings to simulate wedding bands.
Use the sealant to line the inside of the lid. Screw the lid onto the jar and apply a layer of sealant around the rim of the lid to seal it shut. Wipe away any excess glue or water.
Dry the snow globe overnight with the lid side up. Once dry, decorate the lid with your choice of acrylic paint, ribbons or decorative rope.