Introduction: Pet Firefly in a Bottle
The fireflies here in Wilson NC were drawn to a white LED flashlight I was waving around, so I decided to see if I could make a Pet Firefly for my Sweet Heart. I got a cheap white LED and some fake flowers for him to sit on.
Step 1: Parts & Getting Started
I like to take LEDs from cheap $1 store items. Leave the leads long. Take a needle nose plier and bend the leads 90 degrees as shown. then bend the end of the lead into a ring to grip the flower stem it sits on, you can solder a fine wire to each lead or just crimp a wire in the ring you made. Run the wires for power down the stem. I used a thermal clay to make the black body and red sparkle paint for his eyes. I used fine wire to shape the wings and UV cure plastic to fill in the clear wings. You don't want to heat the LED too much, so I used a heat gun to set the body. To give the firefly a more real look, I dipped the LED in my UV plastic and then in Polymer powder to frost it.
Step 2: Find a Jar for Your Pet
I put together four LR44 size batteries and a field effect transistor with a short wire on its gate, so that any movement around the bug will cause it to light. Glass jars would not hold a charge for me, so I used a plastic Peanut Butter jar. let the lead from the FET gate just hang there. On a very dry day you can just walk by the firefly and he will blink at you!
Step 3: Here's Winking at You Kid!
You can hide the batteries with fake grass, I just have my flowers sitting in the jar. You must get the polarity right for the LED to light, other than that it is quite simple.
Participated in the
Let It Glow!