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DIY Glow in the Dark Ocean Jar

Create a mesmerizing miniature ocean in a jar that glows in the dark! This easy and fun craft is perfect for all ages and makes a unique decoration or gift.
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Prep Time 15 minutes
minutes 30 minutes
Total Time 15 minutes
Servings: 1 jar
Course: Activity, Craft, Decoration
Ingredients Equipment Method Notes

Ingredients
  

  • Clear jar with a tight lid
  • Warm water
  • Clear glue or baby oil baby oil gives a really nice, slow-moving effect
  • Blue food coloring or non-toxic glow in the dark paint If you want extra glow, use the glow paint!
  • Glow in the dark beads
  • Glitter or sequins
  • Small plastic sea creatures Think little fish, starfish, or even a tiny octopus.
  • Optional: mini aquarium plants or tiny seashells
  • UV blacklight flashlight This is your magic wand to charge the glow!
  • Optional: glycerin A few drops can make the contents swirl even slower and more beautifully.

Equipment

  • Clear jar with a tight lid
  • UV blacklight flashlight

Method
 

  1. Step 1: Carefully fill your clear jar with warm water. Leave about an inch of space at the top – this gives everything room to swirl.
  2. Step 2: Now, pour in 1 to 2 tablespoons of clear glue or baby oil. If you're using baby oil, you might want to go a little heavier for a better effect. Give it a gentle stir to combine everything.
  3. Step 3: Add 1 or 2 drops of blue food coloring or your non-toxic glow-in-the-dark paint. Stir just enough to get a lovely blue hue. Don't overmix; you want it to look like the sea!
  4. Step 4: Time for the fun stuff! Add your glow-in-the-dark beads, glitter, sequins, and those adorable small plastic sea creatures. If you're feeling extra fancy, toss in some mini aquarium plants or tiny seashells. I love adding a few different sizes of glitter for extra dimension!
  5. Step 5: Screw the lid on your jar nice and tight. Give the jar a gentle shake to distribute all those treasures.
  6. Step 6: This is where the real magic happens. Shine your UV blacklight flashlight on the jar for a few minutes, or place it in direct sunlight. Once it’s charged, dim the lights, and prepare to be amazed! Watch your ocean come alive with a soft, captivating glow.

Notes

For extra security, a bit of hot glue or strong tape around the rim of the lid can be used. The contents should remain clear and beautiful for a long time, especially if baby oil or glycerin is used.