Step 1 - Chose Your Jacket/Vest
First off you'll need a pick a jacket or vest to use, either buying new or finding one to work with at a thrift store. Denim is a much more forgiving material than leather, any stitch/hole you make in leather is permanent. You'll want something that fits you well and is comfortable, preferably not something too loose fitting or too tight, although it's not a big deal if it doesn't button/zip up. If you have a jacket that you want to turn into a vest that's denim or another woven-type material, cut off the sleeves and run it through a washing machine once or twice to get the frayed look on the sleeves.
Step 2a - Plan It Out!
What kind of kutte do you want to make? Traditionally kutten are music based but the main rule is only that it's yours and a reflection of you, it can look however you want! Personally I have one dedicated to all things Halloween because that's what I enjoy, so whatever you're passionate about or identify with is what you should go with. Start collecting materials for your kutte, you don't need do have everything ready all at once, it's not a race and you can slowly add to your kutte over time.
Step 2b - Dye Your Jack/Vest (optional)
Not happy with the color/shade of what you've chosen? Before you get started in earnest you can bleach your denim to lighten it up a few shades (be sure to wear gloves when handling bleach or dye!) or go straight to dying, the Rit brand fabric dye is the go to to use (fabric dye will work better than synthetic). To dye your jacket fill a large bucket or container with hot water and add in the dye, stirring it together before adding your jacket in, leaving it completely submerged and letting it soak for a half hour to an hour. After it has probably absorbed the dye, hang it up to dry and then run it through the washing machine to get rid of any excess dye and chemicals.
Step 3 - Beginning in Earnest
If for any reason you need to wash your kutte, do it now! After this it's considered bad luck to ever wash it. Generally speaking a good place to begin in earnest would be the back patch, this is a large patch centered on the back of your kutte that can be a patch or even a cut up tshirt or other piece of fabric that will be the centerpiece of your kutte. After you select the patch you want to use you'll want to pin it in place before you get started to make sure it's centered and where you want it. If it is something that you've cut up or has frayed edges but sure to fold the edges in slightly so the fabric doesn't continue to fray and eventually fall off. You can use some fabric glue to glue down the edges or pin them down before you begin to sew.
For thread you can use typical polyester sewing thread- white and black are commonly used, but I tend to use any color I think will compliment the patch I'm sewing the best, or you can even use dental floss as a thread substitute. Cut off the length of thread you'll need from the spool and thread it through your needle and tie a knot at the end of the thread. Going from the inside of the fabric, poke your needle through so the knot is on the inside and continue to sew around the border of the patch from here. As you sew don't start right at the edge but leave a little space to make sure you have a good hold against your kutte. There are two common simple stitches you can use:
Step 4 - Patches & Pins!