I actually tried to do this a couple of years ago but used a Styrofoam skull, which floated and ended up with a random crystal chunk and a big flat spot, lol. This year I wanted try again so I found two new plastic skulls to play around with. I thought I could fill the solid plastic skull with water and it would sink – but it didn’t! It bobbed around, so I ended up cutting a hole and filling it with rocks – which turned the water a little murky, but that worked! So when you’re shopping for supplies, find a very heavy skull. Other than that one tip, this DIY borax crystal skull tutorial is easy-peasy and so fun to make!
Supplies for DIY Borax Crystal Skull:
- Heavy faux skull
- Large pot (mine is approx 9 litres)
- Waterproof oven mitts (I have something like this)
How to Make DIY Borax Crystal Skulls:
If you want to check out my original DIY borax crystals tutorial, find the link here.
First, fill up the pot with water and bring to a boil and then turn off the burner and wait for the water to stop boiling. To make REALLY dense crystals, you need a super saturated solution. Basically, dissolve borax into the super hot, just boiled water until no more will dissolve. For my 9 litre pot, I used an entire box of borax. Borax can be an irritant, so you may want to keep a window open while making these crystals.
If you’d like to add food coloring or dye, you can add it at this point.
Once the borax has dissolved, using waterproof oven mitts, submerge the skull into the borax solution. This is where the waterproof silicone over mitts come in handy – the water will be HOT and you don’t want to touch it or accidentally splash any on yourself.
Keep the pot on the same element the entire time and allow it to sit, covered, for at least 8 hours – or overnight. Do not re-position the post or move to a cold element. You can open the lid to check on it periodically, but do not allow too much heat to escape. Once the skull is fully encrusted in crystals, carefully remove it from the pot and let dry.
Below, left, is a skull I made with less Borax. It was a little patchy. But like my “gemstones,” my second DIY borax crystal skull came out DENSELY packed because I was way more generous with the borax.
If you’d like it less packed with crystals than mine, with some more skull detail showing, keep an eye on the borax skull as it cools. After the first 5 or so hours, there won’t be crystals at all. Sometimes even after 8 hours there’s very little activity. After the 8 hour mark, check it every couple of hours and remove it when it looks good to you. I let my very dense borax skull sit for eight hours, and it was still patchy, so then I went to bed and when I woke up it was DENSE like this. So to get this density, I used an entire box of borax and let it sit for 16 hours.
If your skull ends up patchy, put it back into the pot, heat up the water and the borax will melt off. Remove the skull, then just add more crystals, bring to a boil again, turn off the element and mix until dissolved, and then re-submerge the skull and try again – repeating the process. You can also re-use the water even if the crystal skull is a success. Once you remove the skull, heat up the water again, add more borax, and then submerge a new skull in the mixture. To remove stuck in crystals from the bottom or sides of the pot, just heat up the water again. Easy-peasy!
Happy crafting! I hope you enjoyed this DIY borax crystal skull tutorial.
Today I’m joining some of my talented blogging friends for the Fall Seasonal Simplicity Series: Halloween Projects hop. Be sure to check out all of the fun ideas by visiting these posts. All of the links are just below the images.
Free Printable Spooky Halloween Art at The Happy Housie
DIY Haunted Houses at My Sweet Savannah
Halloween Free Printable Watercolour Bats at A Pop of Pretty
DIY Halloween Pillows Made with Cricut at JoAnna Anastasia
The Great Pumpkin Halloween Porch at Tatertots and Jello
DIY Crescent Moon Wreath at Life is a Party
Halloween Gnome Printables at Clean & Scentsible
DIY Borax Crystal Skull at Dans le Lakehouse
Farmhouse Decor: DIY Halloween Wreath at She Gave it a Go
Don’t Forget to Pin for Later!