People maintain driving with a cellphone doesn't distract them. I decided to see if that was true. I thought and thought about what I could do to prove it. Then it hit me. If I put something on my car roof, I could see if people notice. I decided a coffee cup was the best choice, and after consulting my friends, they said to go with a StarBucks cup w/attached "cup condom". I did , and the reaction was good enough for me to give the cup its own Twitter feed( twitter.com/RoofCoffeeCup ), where I jot down what people do while driving, then Tweet a recap later. It's hilarious because I can be driving at 65 miles per hour, and people don't consider how a cup could still be on my roof. When I take turns in front of them, and the cup doesn't move, they still tell me. Even at stop lights, when people get out of their cars and try to take it off, some people don't figure out it's not real.
With how hard it is to keep a straight face because I'm laughing so hard, I knew I couldn't keep the fun to myself. I also wanted to see the RoofCoffeeCup spread out from the small area of New Jersey I drive, and go across the country. Thus, I'm making my first Instructable. All I ask is that if you do make a RoofCoffeeCup, please tweet what reactions/where your cup is using the #RoofCoffeeCup hash tag, so we can all share the adventures.
Now some "legal" stuff. Even though the cup weighs 3oz, the magnets used are hard, and could damage should it fly off, and someone is tailgating you. Check your local laws before attempting. The magnets I use are stronger than the ones on those "tear-drop" lights some people put on their roofs, and this cup is lighter than those lights, so if those lights are legal, I don't see why this isn't. I take no responsibility for anything that happens to you if you try this. I'm only responsible for when I do it with my own car. I'm not responsible for any damage to your car through possible scratching or dents if you drop it close to the car. Don't be a hazard to others on the road. The reason I went with a coffee cup is it's not that out of the ordinary, and it's not a danger to anyone, like if I attached a laptop or something else heavy. It also will not cause a panic/calls to police, like doing this with a baby carrier or car seat would, which I DO NOT endorse trying.
Step 1: Materials needed:
1 Coffee Cup Lid
1 Coffee Cup Condom/holder/ sleeve
3 Hard Disk Drive magnets
1 piece of scrap plastic to mount magnets to
News and/or packing paper
Step 2: Prepping the cup.
Step 3: Making the mount
Step 4: Arranging your magnets.
Step 5: Attaching the magnets
Once cool, I run a razor over the magnets to make sure there's no glue on them, and cover the whole thing with electrical tape so the magnets aren't directly touching my car, and to reduce scratches .
Step 6: Dry fit
If you intend on using the cup holder/condom/anything else, now is a good time to try it on the cup and make any repairs/fixes. Mine had a open edge, and to prevent it catching wind, I hot glued the seam to make it nice and smooth. Once your happy, now we are going to make this disposable cup be able to survive a 65mph trip down the highway!
Step 7: Waterproofing and making it tough
Step 8: Finishing touches
Make sure everything is how you like it, because once the next step is done, there's no going back inside. Dry fit the lid and make sure the lip is not covered by anything. Run a bead of glue around the lids groove, and slap it on the cup. My glue was a little too hot when I did this, and the cups lid melted because of it. But it's on tight, so nothing I can do. I usually seal the hole in the lid, so no air/wind can get inside and pop the top off or cause drag to possibly blow it off.
Now you need to prepare a little before you attach the magnet mount. You want to have some more wax paper handy, and a piece of flat metal. Squirt glue onto the back of the magnet mount, slide it in the cup end(magnets out, of course), lay down your wax paper on the metal, and put it magnets down on the metal. The magnets will pull towards the metal, and make sure the magnets sit flush with the end of the cup and also that they are as close as they can be to the metal. The wax paper will stop any glue sticking, should some escape around the edges. Once dry/cool, apply some extra where you can, to secure it strong.
The last step is to slide on the cup condom, and glue it into it's place. Between it and the paper inside, it makes that area the strongest to grab onto and use to detach from your roof.
Step 9: You're Done!
When removing the cup from a surface, trying to pick it straight up will not work, as you can see the cup can hold onto a lot of weight. You want to try and tilt it to one side and then, like Velcro, it will peel right off.