Concrete Light Bulb Lamp

We decided to make a light bulb lamp utilizing an Edison bulb we got at Ikea and a silicone bundt pan we found at a yard sale for .25!
Watch our how-to video.
Materials/Tools:
- Quikrete Concrete Mix
- Water
- Trowel (we got the smallest trowel available and it worked very well to mix up small batches of concrete)
- Disposable plastic bowls (we used one to mix in, and a couple to sift into and another to hold the rocks we sifted out)
- Sifter (we used an old basket fryer)
- Drop cloth/plastic garbage bags
- Plastic wrap
- Paper towel cardboard tube
- Hot glue (optional)
- X-acto knife​
- Something to scoop concrete with (we used a tuna can after our plastic cup fell apart)
- Sander or other tool that vibrates
- Cooking spray like Pam
- Gloves/face mask
- Silicone bundt pan
- Bean bag
- Large diameter drinking straw
- Lamp Cord
- Lamp socket
- Self-stick felt
- Edison LED bulb
Prepare the silicone mold. Place the cardboard tube over the center. Cut a hole near the edge of the mold and slide the straw through to the middle. Cut a hole in the cardboard tube.
Add just enough water to make a stiff batter like consistency—kind of like brownies. Don’t add too much water. Use the trowel to mix.
Spray the inside of the bundt pan with cooking spray. This will help the mold slip right off when the concrete is cured.
- We placed a bean bag underneath the center of the pan to keep the middle part from collapsing and flattering out. It worked well.
- Using the trowel, start filling the mold, patting it down as you go. Be careful around the straw so it stays on place. Mix up additional concrete as needed and continue to fill.
Using a sander without sandpaper or multi-tool, place it on the edge of the mold to help move air bubbles to the surface.
At the end of 20 hours, remove the cardboard tube, and the concrete from the mold.
Wire the lamp. Check out our website if you need to know how.
We found the socket would not stand up straight in the center so we added some stick-on felt to the bottom of the socket to add some thickness—this worked well—we also added a piece of felt to the bottom to keep it from scratching the surface it's placed on.
Check out our website to see a how-to video!

Mother Daughter Projects
Want more details about this and other DIY projects? Check out my blog post!
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Frequently asked questions

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  • Jennie Lee Jennie Lee on Aug 28, 2016
    I'd like to know why you removed the gravel and made the mortar so thick. In my own case, I found that you don't really see the gravel, and the mortar is best when thinner, like pancake batter. Thanks.

  • Tina Joy Bauman Tina Joy Bauman on Sep 01, 2016
    Wouldn't a bundt cake pan work?

  • James L Brown James L Brown on Oct 26, 2016
    You could have used mortar or masonry cement mix to avoid the rocks in concrete

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