You'll need a few things to get started embroidering a shirt with an embroidery machine. Of course, you'll need the shirt itself, as well as an embroidery machine and some thread. You may also want to invest in some stabilizer, which will help keep your design looking sharp and prevent it from getting lost in the fabric of the shirt. Once you have all of your supplies, you'll need to prepare the shirt for embroidery. Start by washing and drying the shirt, then ironing it to remove any wrinkles. Next, you'll need to hoop the shirt. This simply means attaching it to the embroidery hoop that comes with your machine. Once the shirt is hooped, you're ready to start embroidering!