For valentines day I made my sweety a printed rose with a LED.
The file for the rose and stem, like many other projects I see on this website, can be found free at Thingiverse.com
In the end I now have the rose lit using a watch battery but at first I had to go all in with voice control....
Step 1: Run Power Through the Rose
Once the rose was printed I drilled small holes to run power lines to the LED.
I suggest you pull the wires through the rose, solder to led, then pull back down.
I also should have bent the LED leads to bring it into the rose.
....I also used a red LED of course
Step 2: Arduino Wha?
So of course I had to add an arduino to the rose so that I could you voice commands to light the rose!
The set up was simple, if you are familiar. I use a Arduino Uno, HC-05 and I powered via USB to outlet.
The code can be found on this website by other smarter people and the app I used is called AMR_Voice.
Again, I now just have the rose lit via a watch battery and put in a mice slender vase.