For some reason, a long time ago I had bought a sheet of acrylic/polycarbonate, so I used part of that for the sign. The Dremel Trio made carving into the plastic sheet fairly easy, although I find the dept adjustment on the Trio a little difficult to fine-tune.
|Jessie finishing up the engraving. She was a bit nervous about it at first, then I think she had fun.|
Wired up 3 LEDs to a 9V battery, with some resistors in the loop to keep from blowing it out (tested the circuit on a breadboard first). Not the neatest wiring job, but some heat shrink tubing hides some of my sloppy soldering.
A bit of Shapelock for a stand and we're done, here's the finished product:
And, with the lights off and the battery plugged in:
The blue LED gets pretty washed out by the white, it actually looks more colorful in the picture than in reality. I will have to find a lower intensity white LED for this build.
Now I have made something that I can bring to Maker Faire in NYC this weekend.