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To create the shims needed to open padlocks, you’ll first need a coke can. Take the can and trim off the top and bottom, leaving the middle piece. Make a single cut vertically in the can to create one long piece of aluminum (You may have done this already when trimming off the top and bottom).
Cut the remaining strip of aluminum lengthwise creating two long strips. From here you’ll need to cut multiple pieces approx. 2.5″ in width and 1.5 to 1.75″ in height. You should end up with around six shims out of a single can.
Once your blanks are cut, you’ll need to make cuts in each blank to create an “M” looking shape. The mid-point of your “M” can either be rounded as shown in the video below, or angular as shown in the photos. Either will work, but the rounded mid-point seems to wedge itself better into the locking mechanism.
After the “M” shape is cut, simply fold the top quarter in half and fold the legs of the “M” up and around (see photos and video). You can also shape the completed shim around a pen to give it the necessary curvature it will need to slide into the shackle.
How to Open a Soda Can Quietly
To open a soda can as quietly as possible, you need to equalize that pressure slowly, so it doesn’t hiss. You also have to be careful when pushing the aluminum tab and ensure it doesn’t make that popping noise. Here’s how you do that.
1. Put the Can In the Freezer
One of the easiest ways to open your soda can quietly is to put it in the freezer beforehand. Don’t worry, it doesn’t have to stay in there for hours on end. Just a few minutes, ideally around 10, will do the trick.
By lowering the temperature of the can to nearly freezing temperature, you’ll help equalize some of the pressure in the can. Once it’s cold, slowly pull the tab, releasing the pressure and letting the gas bubbles out.
When you feel like it won’t go anymore without a stronger pull, take your thumb and go over the can opening. Push it firmly down until you open it. Be careful when you’re holding your thumb over the can to avoid cutting yourself.
Now that you’ve successfully opened your soda can and finished your refreshing drink, don’t throw away the can just yet. If you want to upcycle it, there’s a fun and easy DIY project you can do. With just a few simple tools, you can turn any old soda can into a muffler for your car.
2. With Your Thumb
If you don’t have a freezer or don’t want to wait for your delicious beverage to cool down, there’s another trick that’ll help you open a soda can quietly. First, grab your soda can and firmly grip it with your left hand.
If you can, put it on a flat, sturdy surface to avoid any spilling. Then, using the base of your thumb on your right hand, start slowly pushing the opening down.
While you’re doing this, make sure you haven’t put any fingers on the tab. If you leave the rest of your thumb or fingers on the tab, you risk pushing too hard and having it open too fast. When that happens, the soda can will make a loud popping noise, which is exactly what we’re trying to avoid.
The point of opening a soda can with your thumb is to slowly relieve some of the pressure that’s inside. Once you feel like it’s stopped hissing, take the tip of your thumb and slowly start pushing on the opening, just like you did with the previous method.
You also might be able to open the can with only the base of your thumb by pushing firmly. However, you risk pushing too hard and spilling your drink on yourself.
3. Use a Dish Towel
If you don’t want to fiddle with a can or try opening it with your thumb, you should try using a dish towel. You can also use a couple of towels on the can to dampen the sound even better.
Take your towel of choice and wrap it as tightly around the soda as you can. Also, make sure that the majority of the fabric is on the top part of the can.
Then, using your thumb and index finger, take the tab and slowly start pulling it up. Again, the point here is for you to do it slowly enough until the pressure stops equalizing.
One of the benefits of opening your can of soda with a towel is that it’ll muffle both the hissing and the popping sound.
4. Puncture the Can With a Knife
If all else fails and you don’t have a freezer or dish towel, you can use a knife. However, this is a pretty tricky method and you have to be extremely careful when handling the knife.
There are two ways you can do this: puncturing the side or the bottom of the can. If you want to go for the side, you should tilt the can slightly to the left.
Then, poke a small hole at the top of the can, on the right-hand side. That little hole will release all of the built-up pressure inside and the soda won’t hiss.
On the other hand, you could also poke a small hole on the bottom of the can to avoid pulling the tab altogether. If you decide to go with this method, put a glass right under the can that’ll “catch” the soda.
Step 6: Troubleshooting
Sometimes the opening section will only open partway, leaving just a narrow opening. If this happens, you have 3 options: 1 – If the ring tab is still attached, you can push it back to its opening position and try the whole procedure again. 2 – If the ring tab had broken off, you can use your thumb or any blunt object to push the opening section open. 3 – If all else fails, you can always pour the soda into a glass through the narrow opening.