Step 1: Helmet and Box
I have a box that used to hold paper rolls. You need a box that is a bit bigger than your head so that your nose is not squished against the cardboard while doing the Charleston. My box is about 38*32*40cm.
Since the LMFAO robot head is gold, we must also paint it gold. I found gold acrylic paint at the local dollar store. If you can't find any dollar store paint (by the way which is great) your hardware store should sell gold spray paint. I haven't tried gold spray paint before, so use it with your own discretion.
Step 2: Cutting Eyeholes and a Mouth
Next, you need dark film (car window tinting film works well) so that from the outside, the eyes and mouth look black. I didn't put any film on the mouth so that I can see better when it's dark, so it's optional. A gluestick to attach the plastic to the cardboard should suffice.
By the way, each side of the robot head has something sticking out. I made those by sticking plastic bottlecaps together and painting them gold. Then I glued and stapled them to the cardboard.
Step 3: Eye Lights
To make a simple light strip, you need two thin wood boards with two rows of six small holes to put the LED leads through. Then put the positive end on one row. I made a mistake of not doing that and had to rewire the board twice. Basically, it is 6 LEDs wired in parallel. You also need wires on the circuit
Each light strip is about 3-4.5 volts, and you can wire a strobe circuit or something to make it flash. By the way, the real LMFAO robot head's lights flash out of sync and probably at different speeds. A search on LED circuits will probably come up with something useful.
Once you finish wiring the lights, you need to attach it to the cardboard so that it's visible through the eye holes, so we glue it!
Step 4: Shuffling!
Every shufflebot isn't a shufflebot if they can't shuffle. Thankfully, "shuffling" or the "Melbourne shuffle" is a really easy style of dance.
The basic steps to the "Running Man"
1) Place one foot in front of the other, as if you're walking.
2) Raise one knee in about a 70-90 degree angle.
3) Place the knee down while sliding the other foot behind the other.
4) Repeat in rapid succession.
For learning the shuffle and other moves, YouTube will be your friend!