Easy Growing Crystal Christmas Ornaments for Kids

There's a special kind of quiet that falls over my kitchen when the kids are waiting for something to happen. Not the "are we there yet" whining kind — the genuinely peaceful kind, where they keep wandering over to check, whispering, "Is it working yet?"

That's the magic of growing crystal ornaments. You bend a pipe cleaner into a star or heart, hang it in a jar of hot borax water, and come back to find it covered in sparkling crystals. It feels like actual magic, even though it's just science being beautiful.

Why You'll Love Making These

This is a slow craft in the best possible way. Most of our crafts are frantic twenty-minute affairs; this one teaches kids the radical concept of waiting for something wonderful. The checking-on-it ritual became the highlight of my kids' day for three days straight.

The ornaments themselves are stunning — real faceted crystals that catch the light like tiny jewels. They look expensive. They cost pennies.

Materials You'll Need

• Pipe cleaners (any color — they disappear under the crystals anyway)
• Borax powder (find it in the laundry aisle; gives the sparkliest crystals) OR baking soda (softer, frostier crystals, gentler ingredients)
• Boiling water
• A wide-mouth glass jar or heatproof container
• String or thin yarn
• A pencil or chopstick
• A spoon for stirring
• Measuring cups and spoons

Safety note: borax can irritate skin and should stay away from little mouths. Grown-ups handle the borax and boiling water; kids handle the shaping and the checking. If you'd rather skip borax entirely, baking soda works — the crystals are softer and cloudier, but still lovely.

<img src="https://thediynook.com/wp-content/uploads/2026/09/pin-v1-31.webp" alt="Growing Crystal Ornaments" />

Step-by-Step Directions

1. Bend a pipe cleaner into your ornament shape — stars, hearts, snowflakes, candy canes, initials. Twist a small loop at the top for the string.
2. Tie a piece of string to the loop, then tie the other end around a pencil so the shape hangs from it.
3. Grown-up step: boil water and pour it into the jar (about a cup per ornament, enough to fully submerge the shape).
4. Grown-up step: stir borax into the hot water, one tablespoon at a time, until no more dissolves. You'll need roughly 3 tablespoons per cup of water. This is the saturated solution that grows the crystals.
5. Lower the pipe cleaner shape into the solution, resting the pencil across the jar rim so the shape hangs freely without touching the sides or bottom.
6. Set the jar somewhere still and out of the way — somewhere the kids can visit it easily.
7. Wait. Check after 2 to 3 hours for the first sparkly fuzz, then leave it overnight for full, chunky crystals.
8. Lift the shape out by the pencil, let it drip back into the jar, and set it on a tray to dry completely.
9. Optional: give it a quick rinse in cool water to wash off loose powder, then dry again.
10. Trim any poky wire ends, tie on a pretty ribbon, and hang it where the light hits it.

The Learning Behind This Craft

This is crystallization in action — as the hot saturated solution cools, it can't hold all the dissolved borax, so the extra forms crystals on the pipe cleaner. Kids are literally watching molecules organize themselves. My daughter now explains this to anyone who will listen, including our very patient mail carrier.

It also teaches patience and observation. Checking the jar twice a day, noticing tiny changes, predicting what tomorrow will bring — that's the scientific method wearing a sparkly costume.

Tips If Things Go Sideways

No crystals forming? The solution wasn't saturated enough. Reheat the water and stir in more borax until it truly won't dissolve anymore.

Crystals growing on the jar instead of the shape? The shape was touching the glass. Make sure it hangs freely in the center, not touching sides or bottom.

Shape came out lumpy and uneven? That's usually from bumping the jar. Set it somewhere it won't get jostled — crystal growing hates vibrations.

Crystals flaking off? They need to dry completely before handling. Give them a full day on the tray, and handle gently.

Want to redo one? Dissolve the crystals off in hot water and start over with a fresh solution. Pipe cleaners survive multiple rounds.

Fun Variations to Try

• Bend the pipe cleaners into snowflakes for a winter window display.
• Try food coloring in the solution for tinted crystals (pastel pink is gorgeous).
• Make a whole crystal mobile by hanging several shapes from a branch.
• Compare borax vs. baking soda side by side — a perfect little experiment.
• Use the finished ornaments as gift toppers or napkin rings.

FAQs

Is borax safe to use with kids?

With supervision, yes for this craft — but grown-ups should handle the borax powder and hot water, kids handle shaping and observing. Wash hands after handling, and keep everything away from mouths and pets.

Can I use something other than borax?

Baking soda works and is completely kitchen-safe. The crystals are softer and more frosted-looking rather than sharp and sparkly.

How long do the crystals last?

Indefinitely, if stored dry. Keep finished ornaments in tissue paper in a box — rough handling chips the crystals.

Can I regrow crystals on an old ornament?

Yes! Dissolve the old crystals in hot water, make a fresh saturated solution, and grow a whole new layer. Each regrowth looks a little different.