DIY Concrete Lamp

I found this technique very playful. With some cement in hand and some Christmas leftover balloons I created this tabletop lamp.

VIDEO -

https://fb.watch/3vkFq701sw/

Supplies

Foamboard (6" x 15") x 3pcs

Small balloons 30 pcs

Concrete

Lamp holder

200 watt bulb

Plywood piece of 6" x 6"

Ground clearance buffers 8pcs

Tape

1" Styrofoam (3" x 18") x 4pcs

Step 1: Making the Mold Structure

I drew lots of different circles on the foamboard and made the cutouts. Combined them from both ends and made a hollow rectangular structure.

Made a similar thermocol(styrofoam) rectangular structure, slightly bigger than the outer body for the walls.

Stuck the balloons from outside using sellotape. Make sure the balloons touch the inner styrofoam wall.

Step 2: Insert Concrete

Insert concrete from the side. Make sure the consistency of the concrete is on the runny side.
I made a 4:1:1 consistency where 3 part was concrete, 1 part of sand and water.

Let the construction dry for at least 48 hours before opening.

Step 3: Opening the Mold and Cleaning It

After 48 hours I removed all the balloons from the sides and opened the mold.

Cleaned it, polished the rough edges and drilled some holes which didn't form in the casting.

Step 4: Assembling

I took some old plywood and made it the size of the concrete base. Screwed the buffers from both the sides.

Attached the bulb holder and bulb on the center.

VIDEO -
https://fb.watch/3vkFq701sw/