Update: I decided to update my brain slug to improve some aspects I thought were lacking in the last one and also to make it even more glowy. Step 8 has the update
Step 1: Supplies and Tools
Silicone caulk, get the stuff that has a warning about acetic acid vapors(the vinegar smell that it gives off)
Green food coloring
For the mold you will need:
a small yogurt container
a ball of similar diameter to the top of the yogurt container
rubbing alcohol(optional but greatly helps release the hot glue, learned about it from this instructable
For the eye you will need:
white plastic (got mine from a milk container)or thick paper
a washer, or something circular to trace.
A small nail
a black marker.
For the glowy bits:
a bit of cardboard/foamboard
green diffuser (I used a green tailswitch from a flashlight)
Other various tools and stuff you will need:
hot glue gun
something to mix the oogoo in, I used a plastic tub
something to mix with, I used a plasic knife and a paint stirring stick
a hat you are ok with cutting up
Step 2: The Mold
Step 3: The Oogoo
Step 4: The Eye
Step 5: Making It Wearable
Step 6: Making It Glow
Step 7: Potential Improvements/Lessons Learned
I did this in a bit of a hurry as I waited to the last minute to make it. One thing I learned is to make this a couple days before hand to let the vinegar smell completely dissipate. I made it the night before halloween and so it was still a bit strong smelling by the time I had to wear it. Another thing I learned is to use fresh or at least semi-fresh silicone caulk. I had made another brain slug several days beforehand with some old caulk I had laying around. Even though it was the right type of silicone caulk, it must have been semihardened or something as it was terrible to work with and took forever to set. I might also change how I attached the eye. The nail works, but I am not overly fond of having a small nail on top of my head. I would think a proper glue would work, or maybe just something plastic instead of the nail. Lastly, I wonder if a wig would look more natural than the hat.
Anyways, I enjoyed wearing the brain slug and was happy to see people recognize it. If you decide to make a brain slug for yourself, please feel free to share. Its always good to spread the Futurama love.
Step 8: Update: More Glowy Bits
The body was illuminated with an awesome led chaser kit from the instructable user ledartist. I chose this kit because it had soo many different functions to choose and speed variations for all of them. The only modification to the kit was that I ran wires out to a battery holder, instead of using the on board battery holder clips. Those clips were what I used to mount it to a foamboard holder that kept the led chaser in the center of the brain slug. I wrapped the chaser in a layer of wax paper to help diffuse the leds a little. The power lines to both batteries were run out the bottom of the brainslug and taped into place on the inside of the hat.
I am quite pleased with this update. I really like that the eye is a little more proportionately sized and that it glows white, which I think makes it visually pop a bit more. I think the slow upward led chaser provided from the kit really improves it without being a flashy eyesore. Anyways, I enjoyed making this updated version and hope others enjoy it as well.