Article: In order to stimulate you guinea pig into action, be sure to choose a playful, bright color of yarn.  This will look more interesting to your guinea pig and will brighten up their enclosure.  You also want to make sure to choose a yarn with wool that is not too thin, since guinea pigs tend to want to chew on things and thin wool won’t stand up to their teeth. To do this you are going to want to find an object to wrap the wool around that is small and fairly rigid, like a small cardboard box.  Keep in mind you don’t want to choose an object that is too big, since this size of the box determines the amount of yarn wrapped around it, and you don’t want this part of the toy to be too big.  Wrap the wool around the object once and tie tightly.  Don't worry if it's not an extremely tight knot, it will still work.  Continue to wrap the wool around the object, with each loop approximately on top of the last. You want the toy to be thick and plush, but if you use too much wool, the toy will be too bulky or heavy for your guinea pig to play with easily.  As you determine how many loops are necessary, keep in mind that the thickness of the wool loops at this stage is about half the fatness of the finished toy.  Depending on the size of your object and the thickness of your wool, this should be about 15 - 25 loops.  When it is thick enough, cut the end of the wool from the ball of yarn, and don’t worry about tying that end off. Use a double knot, and tie it as tightly as you can.  It may loosen a bit if you are doing this unassisted, but that’s okay.  This is where using a box or other rigid item comes in handy, as it's easy to slide the wool under.  If you wrapped the wool around a rounder object, use your fingers to push the tie under the loops. Now that the body is tied in the middle, turn over the object you wrapped the wool around and cut the loops.  Try to cut exactly opposite from where your tie was in order to keep the dangling wool pieces even.  If your scissors don’t cut through all of the wool at once, do it in sections, making sure the cuts are as straight as possible.  When you are finished cutting, remove the loops from the box.  You should now have a thick chunk of straight, even wool strands that are tied in the middle. Even though it will be dangling and the wool strands are tied, it is still possible for a clever guinea pig to pull loose strands out and eat them, which could be dangerous.  In order to avoid this and make the toy safe, flip the body of the toy over so the middle tie is at the top.  Take another strand of wool and tie this together around the bottom of the strands.  You want to make sure this second tie is close to the bottom. Measure a piece of string that is long enough for the toy to dangle where your guinea pig can reach it, without being so easy to get to that it’s not exercising your pet.  It is recommended that you cut a piece that is too long and trim it down later as you string it up.  Take this long piece of wool and tie it through the middle of the toy body.  Tie the other end to the roof of your guinea pig cage, and watch your guinea pigs enjoy their new toy!
Question: What is a summary of what this article is about?
Purchase thick wool in a bright color. Start making the body of the toy. Stop wrapping when the body of the toy is thick enough. Tie a piece of wool around the middle of the loops. Finish the body of toy. Cinch the strands in for safety. Hang the toy up and let your guinea pig enjoy!

Problem: Article: Each strip should be the same length and width, but these measurements can be adjusted to make smaller or larger ships. To make a standard sized ship, cut both strips 10 inches (25 cm) long and 3 inches (7.6 cm) wide. Smaller ships can be made by halving the suggested measurements, and larger ships can be made similarly by doubling.
Summary: Cut three same-sized strips of cardboard.

INPUT ARTICLE: Article: Frisket film is a transparent sheet with a slightly sticky backing that can be placed directly onto hard surfaces and removed without damaging existing paint jobs. Buy frisket at craft supply stores. Avoid buying glossy frisket if using water-based paints as the paint will smear on the glossy surface. Ensure that there is no dirt or grime on the material you want to airbrush. The frisket film stencil can be reused, but if the sticking surface is dirty, dirt will be picked up and the film will lose its ability to stick. To protect a large surface or a large image, simply lay down a large sheet of frisket or unroll enough frisket to cover the whole image. Use scissors to cut frisket from the roll. Peel back a corner of the paper from frisket film and set frisket sheet over the image. Slowly peel away the backing while smoothing the frisket down over the image. If laying down a large roll of frisket, use a bench scraper or roller smoother to smooth and remove air bubbles from the frisket. Set material with image on a cutting mat so material with frisket on top is on the mat . With a sharp utility knife apply a little pressure to cut the outline of image through the frisket. If you press too hard, you will cut the material that is being airbrushed. Lay frisket directly onto printed photo paper, heavyweight paper, or cardboard. Frisket is a great choice to make a detailed stencil. For simpler stencils, use paper, acetate, or cardboard instead. Use the tip of the utility knife to gently pry up a corner of the frisket. Use fingertips to slowly pull away frisket to reveal image. Load airbrush with paint and airbrush over the stenciled image.  Remember to wear a respirator when using the airbrush. Keep the pieces of frisket film that was removed from the stencil. Put them back in place while airbrushing to keep over spray from affecting the design.

SUMMARY: Purchase frisket film either in rolls or by the sheet. Clean the airbrush surface. Cut a piece of frisket film large enough to cover entire design. Place unpeeled frisket over image. Use a sharp utility knife to cut out image. Remove frisket from image and airbrush item.

Chrome and Smart Keys look similar, but Chrome Keys belong to newer Mercedes cars. Chrome Keys have a metal casing, but Smart Keys are generally made of plastic. Although Chrome and Smart Keys operate in a similar way, their batteries are changed in different ways. The current Chrome key model has a red triangle for its panic button. The words "panic" should be written on this button in capital letters. If you have the latest Chrome key, purchase one CR 2025 battery before you open its case. All Chrome key batteries are changed in the same way, but older models need 2 CR 2025 batteries instead of one. Unlike newer models, older Chrome keys have a circular panic button with the word "panic" inscribed in white letters. Newer and older Smart Keys will have a black plastic casing. Although all Smart Key batteries are changed in the same way, newer Smart Keys have a red panic button identical to older Chrome keys while first model Smart Keys do not.  Smart Keys need 2 CR 2025 batteries. The first Smart Key model does not have a panic button.
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One-sentence summary --
Distinguish between a Chrome or Smart Key. Spot the latest Chrome model by its red triangular button. Look for a circular panic button on older Chrome keys. Check for a plastic casing on Smart Keys.