"draw on a light bulb, and you can have really cute designs shine on your wall at night."
Yes, another sharpie pin. I've been meaning to test this one out for some time, but most of my light bulbs are CFLs so I've been waiting until I remembered to pick up some old fashion light bulbs. This week was the week. I've been unable to find the original source of the image so I can't tell you for sure if this is what the image is really telling us, or if there is some other craft that has been lost in translation. Often times you find images on pinterest saying one thing, but the source is for something entirely different (like the coffee for hair loss, the brown sugar straightener, the spray painted lightbulb and coffee beans).
Simple enough to test out, I spent about 10 minutes this evening doodling on a light bulb with a Sharpie.
Here's the finish product:
And here it is, plugged into my table lamp, casting... light. No shapes, no patterns, just bright white light.
I knew this wasn't going to work, because if you've ever looked at a light bulb, they usually have markings printed on the top of the bulb listing the make, manufacturer and wattage of the bulb. If drawing on them worked well enough to cast shapes, then you'd see the marks from any light bulb being cast on to your ceilings as well.