How to Make The Best Homemade Halloween Slime (No Borax!)

Create the BEST DIY Homemade halloween Slime Recipe made with only 3 ingredients (no borax)—white school glue, baking soda, and contact solution! The perfect activity for spooky fun with the kids!

Halloween is the perfect time to get a little spooky and a lot of creative, and what better way to entertain the kiddos (and yourself) than by making some fun, DIY homemade Halloween slime?

It’s easy, inexpensive, and a total sensory delight. Plus, it’s the perfect way to get into the Halloween spirit without too much fuss or mess.

Why Make DIY Halloween Slime?

There’s something extra special about DIY Halloween slime. First, you get to control all the ingredients—no hidden chemicals or mysterious additives.

Second, it’s a great hands-on project that combines fun and learning. (Who knew slime was a sneaky science experiment?)

But the best part? DIY Halloween slime is endlessly customizable! You can go with classic ghostly white, witchy purple, eerie green, or even toss in some glitter and plastic spiders for that creepy-crawly effect. Your imagination is the only limit.

Why Seasonal Activities Are Awesome

Halloween sensory activities are a fantastic way to mark the changing seasons and get kids excited about upcoming holidays. They create lasting memories, and it’s something the whole family can look forward to each year.

Whether you’re hosting a Halloween party, having a spooky-themed playdate, or just looking for an afternoon project, a good seasonal activity always adds a little extra fun to the mix.

The Best DIY Halloween Slime Recipe

Here’s the ultimate go-to DIY homemade Halloween slime recipe that’s quick, easy, and gives you that perfect stretchy texture every time. It only takes three simple ingredients you probably already have in your pantry, and it’s fail-proof. Seriously, you’ll never need another slime recipe again.

Ingredients

• 1 cup Elmer’s School glue 
• 1 tablespoon baking soda
• 1-2 tablespoons Contact Lens Solution (make sure it contains boric acid or sodium borate): We used Bauch+Lomb Renu.
• Food coloring
• Optional: Halloween confetti, glitter, pom pom balls, or spooky little toys like plastic spiders or eyeballs for that Halloween vibe.

Instructions

1. Mix the Glue and Color

Start by adding 1 cup glue into a mixing bowl. If you want colorful slime, this is the time to add a few drops of food coloring (a little food coloring goes a long way!). Mix it all together until the color is even.

2. Add the Baking Soda

Next, add 1 tablespoon of baking soda to the glue mixture. This will give your slime a bit of structure and thickness.

3. Add the Contact Solution

Slowly add 1 tablespoon of contact solution while stirring continuously. As you mix, you’ll see the slime start to come together and thicken. The mixture will begin pulling away from the sides of the bowl.

4. Knead the Slime

Once the slime is thickened, it’s time to get in there with your hands! Knead the slime for a few minutes until it’s smooth and fully mixed. At first, it’ll be a bit sticky and wet, but don’t worry—just keep working it until it comes together.

If it’s still too sticky, add a little more solution, a few drops at a time. You want it to be stretchy but not gluey.

Pro Tip: If you rub a few drops of saline solution on your hands before kneading, it’ll help keep the slime from sticking to your fingers.

5. Add the Glitter and Toys

If you want to add a little extra Halloween flair, now’s the perfect time to mix in some glitter or spooky toys like plastic spiders or eyeballs. Stir them in until evenly distributed for that extra spooky touch.

6. Store

After playtime, store your slime in a mason jar, zip-top bag or any airtight container. This will keep it fresh and ready for future use.

Spooky Creative Play Ideas

Now that you’ve crafted some gooey, stretchy slime, let’s amp up the spooky fun with these creative play ideas perfect for Halloween. These spooky, slimy activities will keep the Halloween excitement going and give your kids hours of creative play!

1. Haunted Slime Stretch

Use your DIY Halloween slime as the base for a haunted house game! Hide small plastic Halloween toys like skulls, black cats, or tiny skeletons inside the slime (we used plastic spiders, worms, and erasers from Target’s dollar spot). Let your kids dig through the slime to find all the hidden spooky treasures.

2. Slimy Spider Web

Stretch your purple slime as far as it’ll go to make a sticky spider web. Add plastic spiders on top and let your kids “catch” the spiders in their web by folding the slime back onto itself.

3. Monster Mash Slime

Roll your slime into small blobs and stick googly eyes in them to make your own squishy, oozy monsters. Kids can stretch the slime to create wiggly monster arms and legs, making it a fun way to craft your own monster family!

4. Witch’s Potion Slime

Pretend your DIY Halloween slime is a magical potion! Add in tiny plastic bats, spiders, or glitter to create a bubbling witch’s brew. Let your kids stir the slime in a plastic cauldron as they “cast spells” and mix up spooky concoctions.

Get Ready for Spooky Fun!

Now that you’ve got the ultimate DIY Halloween slime recipe, it’s time to get slimy and spooky! Whether you’re crafting with your kids, hosting a Halloween party, or just looking for a fun DIY, this homemade slime is a surefire hit.

Get ready for some seriously spooky fun!