Scale model cockpit FPV

cool scale cockpit video

Funny Zoo Snap

man enjoys elephant My wife noticed this in the family archives.

RC Nitro motorcycle racing

rc motorcycle Motorcycle racing in Lilliput.

Manned RC Multicopter

manned multicopter
Here’s an RC multicopter big enough to ride on!

Make: Talk 004

make: Talk 004
I had a fun time talking to Mark Frauenfelder in episode 4 of his new podcast, Make: Talk!

One Man Basement Band

one man band
I feel like I could be getting more mileage out of my right foot.


liberty vintage motorcycles An Etsy portrait. Thanks, Danny.

Tequila Sleeve

tequila the champs
Champs sleeve

Wolf-Stelzer Book Lamp

Book Lamp
My friend Tess just made the cover of ReadyMade with her cool lamp design.

Tree Stump Bug

Can this be for real? The design is so awesomely Thunderbirds. Via

The Nothing Box

nothing box


Thunderbirds are go
Are Go!

Command Center

command center
Sweet assemblage spaceship’s bridge.

Four Drano’s

Watch the sink slowly, all but disappear from the design .

Toothpaste Aerosol

toothpaste aerosol
Aerosol toothpaste

Concrete lightbulb

lightbult casting

I don’t know art, but I know what I like. Recently, I found myself taking a shine to lightbulbs. I don’t remember exactly what started the whole lightbulb thing, but when it was all over, I was in posession of several handsome examples of different screw-base lightbulbs, a huge light bulb oil painting, and a dozen or so concrete lightbulb castings.

The concrete bulbs are particularly popular among visiters to my cubicle at the office. When people pick one of these things up off my desk, they invariably finger it for a second while doing a few eyebrow excercises before finally letting out a “Ok, how did do it?”

It’s surprisingly simple, try making some yourself.

Take a very fine file, razor saw, or emery board and carefully saw aroud the lightbulb, right where the glass meets the threaded base. You want to score the glass all the way around. Then you will be able to snap the bulb right off at the base and extract the base complete with the long glass filament holder. Do several at a time, since some will turn out better than others.

Next mix up some some concrete, either pre-mix or just a 50/50 blend of sand and portland cement. Make it about the consistency of hummus. (everyone always says peanut butter, so I thought that I would say hummus.)

Use a funnel or paper cone to fill the bulbs with the concrete, then replace the glass stem and screw base. Let the concrete dry for a few weeks, then peel the glass away much like you are peeling a hard-boiled egg.

Now, sit back and be moved by the juxtaposition of the fragile and the resilient, a familiar warm form rendered in cold, heavy, stone.

Ray Alderman’s bulb log.

22 Responses to “Concrete lightbulb”

  1. kaufman Says:

    Hi Steve, I don’t see an email link for you, so I’ll just leave this right here. I just wanted to say how much I enjoy your site/blog. This “concept” is EXACTLY what I’ve been trying to put together myself – a blog to showcase all of the various and often fleeting obsessions that I get distracted by.



  2. Steve Says:


    Thanks for the kudos.

    I have added an email address to my “what is finkbuilt?” page.

    Steve Lodefink

    I guess that if I get too much spam, I will switch to a graphic text address or something.

  3. Roger Shoaf Says:

    They make white portland cement, and additives to make the mix flow better. Also if you can make some sort of vibrator you could get rid of the bubbles.

    This might make a spiffer looking bulb.

  4. Matthew in the UK Says:

    My girlfriend did work some sculptures related to lightbulbs, she’ll love your stuff, really nice.
    See: http://www.robynerbe.co.uk/ (check out gallery/mixed media)

  5. Steve Says:

    Matthew, cool stuff, thanks.

  6. Matt Schinckel Says:

    I made one of these from Cornice Cement – the great advantage is that it dries in a couple of hours, rather than days.

    And Cornice Cement is pretty cool, too.

    I’ll take a photo one day, and post it onto my blog.

  7. a different Steve Says:

    these are great! i got bubbles in mine but i think it just makes ‘em look cooler. kinda like a lunar surface.

  8. Dave M Says:

    I’ve made a few of these and it’s hard to avoid the bubbles when using concrete.

    For a totally smooth surface, I’ve found that using hardwall plaster works a treat. If you make the driest mix possible (still allowing you to pour it) it dries in about an hour.

    For a bit of fun I’ve also added oxide coloring to the mix…the electric blue bulbs look very cool.

  9. Ed Smithy Says:

    To vibrate bubbles out of your concrete try putting a carrage bolt in your hammer drill and running it like a drill bit. This is what we use to raise bubbles to the top of counter tops. you must take a peice of wood and drill a large enough hole to craddle the bulb, then press the drill with the carrage bolt to the wood and vibrate away the bubbles.

  10. neoletic Says:

    I can’t cut the lightbulb with anything:( help!

  11. cecil Says:

    These are great !…Good conversation item !..
    If you could figure out a way to sand a small portion…would be a good paper weight !

  12. cecil Says:

    These are great !…Good conversation item !..
    If you could figure out a way to sand a small portion…would be a good paper weight !

  13. Scott M Says:

    Here’s an idea: paint with invisible UV reactive paint, and under a UV light, it will glow like a real lightbulb!

  14. Oliver Says:

    Thats a nice light bulb canvas you got on the go sunshine!

    I got one of a Battery i bought in London off some stoner for a fiver.. maybe they are a pair?

    Pairs are worth something you kno!

  15. Dave Says:

    I have heard of someone making ammo for his spud-gun this way. I guess they are the perfect size for a 2″ PVC barrell or something.

  16. Dave Says:

    I have heard of someone making ammo for his spud-gun this way. I guess they are the perfect size for a 2″ PVC barrell or something.

  17. crystal Says:

    Cool!crystal clock holder

  18. otogazete Says:

    good text thank you

  19. Best Wedding Ideas Says:

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  20. concrete calculator Says:

    I just saw another blog about transparent concrete bieng made with fibre optic glass. Combine this with that and sombody could make a working concrete lightbulb. Useless but interesting nontheless.

  21. sara Says:

    This is very good that helps people to save their construction in a very cheapest way I really loved it.

  22. Nice Concrete photos :: Call Rescue 911 Says:

    [...] ideas Image by caffeineslinger these are concrete lightbulbs. fink yourself [...]