|Solder the neopixels before removing the adhesive from the copper tape.|
The most important one is to solder the LEDs to the copper tape before creating the rest of the circuit. Compared to my first botched attempt, in which I tried to solder neopixels to copper that was already adhered to paper, soldering the LEDs to the copper first was far less fiddly.
In this project, I've added a LilyPad button board in addition to a LilyPad slide switch.
|I painted the design and sealed it with acrylic gel medium.|