Learn how to DIY a crescent-moon-shaped shelf using cardboard and plaster. Perfect for displaying crystals!

Guys. Guys.
Remember that time I upcycled a piece of cardboard into an arched jewelry holder? Well, I was deeply inspired by that concept – and how easy it was to make. So today is more of the same but with a crescent moon shape. And I’m obsessed.
Admittedly, this is a Tumblr circa 2012 kinda craft. She will likely be sold on Facebook Marketplace for another home. However, the concept? Fabulous. We will be making more – and in more creative shapes.

(I’m thinking a mushroom next but any suggestions are welcomed . . .)
I was wondering what to use this bad boy for and then capitalism kicked in. My most popular post at the moment is 50 ways to display crystals, so why not create a little DIY crystal shelf? It fits the theme of the crescent moon perfectly.
Anyways, you’re going to love this craft for three main reasons:

One: it’s a practical way to upcycle any cardboard you have lying around your home. (All those Amazon Prime boxes? Girl, I see you.) Two: you can create a practical and – dare I say – cute shelf using no power tools. Three: this cost me less than $10 to make.
In fact, it cost me literally nothing to make as I already had all the supplies. But, had I needed plaster, a tub only costs $8! Shall we get into the making?
WHAT YOU NEED:
- Cardboard box
- Hot glue gun
- Joint compound/plaster
- Plastic spreader or plastic gloves
- Sanding Paper

HOW TO MAKE:
As always, I have a handy TikTok tutorial you can check out too!
- Cut a crescent moon shape out of cardboard. This will work as the back of your shelf.
- Making sure your card lines are horizontal, cut a thin and long strip of cardboard to use as the border for your shelf. Bend along the lines to create a curve shape.
- Hot glue down the border.
- Cover in joint compound, building layers until you’re happy with the thickness. Leave to fully set.
- Sand down for a smooth finish.
- (Optionally) Puncture two holes in the side and feed rope through them. Use these to hang your shelf!
See – this is super easy and fun to make! You could totally try out different shapes too; a few I like are the peace symbol, a heart, flower . . . (Okay, I understood the assignment: we will make a funky daisy shelf. Maybe with a fun cow print?)

Anyways, my loves, we shall end at the end! I hope you enjoyed this craft – would you recreate it yourself? What shapes would you try out? Let me know your thoughts down below!
This is so creative and I love it! I love the moon and it looks amazing
Lailahttp://www.lailanblog.blogspot.com
This turned out so good! xx
Danielle’s Beauty BlogÂ
This is absolutely perfect for your crystals – such a good idea, so creative and one of a kind too! x
This did come out really good. Also I think a mushroom would look interesting and I like the sound of a peace symbol too. Have a great week Mia : )
juanitalikes.com
This looks great! http://skylish.co.uk
This looks fabulous, you are so creative xx
Janet
http://www.rediscoveringmystyle.com
This is beautiful. Love it!
xoxo
Lovely
http://www.mynameislovely.com
This looks good. You are really creative. Thanks for sharing. Have a great week.
Annie,
Annies Food Diary
Thank you so much, Annie! You too 🙂
What a wonderful idea! I have a huge crystal collection and came across a moon-shaped wooden shelf but it was super expensive. I love this beautiful DIY project, not only is it just as nice but it’s affordable too! Thanks for sharing!
Thank you so much! I hope you try it out 🙂
So beautiful in its simplicity!
xoxo
marisasclosetblog.com
Thank you, Marisa! 🙂 xx
Oh this is so clever and love the rustic vibes. So pretty!
Allie of
http://www.allienyc.com
Thank you, Allie, glad you liked the project! 🙂
This shelf is so beautiful and unique. I like it so much.
Thank you so much!
A very cool shelf, never seen one in a crescent moon shape before 🙂 Lovely