Simply put, this is how to build LED antennae for you cap without any soldering.
The genesis for this idea started at a Make Magazine meetup in San Francisco. They had moved in to the old Exploratorium building and invited the public to celebrate the new space. They provided pizza, sodas, beer and a ton of 10mm LEDs of various colors, CR2032 batteries and duct tape and then said have at it. My daughter covered her lanyard, put pupils on a Neff face hoodie, and urged me to put them on my hat. They looked like little nubs atop my cap. After that night I wore the cap around for weeks. In time the duct tape started to give way, it would constantly stick to my hair, and the LEDs would flicker on and off. Also during this time kids and some adults would stare at them, ask what they were or just immediately identify them an antennae, and ask how does it work.
Then I had a LED moment! An army of human-insect hybrids both young and old marching towards city hall demanding the right to co-exist peacefully amongst cranial normals. I thought I'd write up an Instructable and direct folks to the site where they can build their own.