I am not much of a t-shirt girl. At least not the traditional square kind with the crew neck. I do like tank t's and muscle shirts. My t-shirts that I give to my teens & seniors are like the one below. In other words, not the kind that I, personally, like to wear. So, I whipped out a pair of scissors and made my business logo T the right kind of T for me. Here's how.
Choose the shirt you want to cut. Lay it out smoothly, with no wrinkles on your desk or tabletop.
Next I took a shirt that has a shape that I like and laid it out smoothly on top. Make sure that the shoulder seams line up along the top.
Using a newer, sharp pair of scissors, make long, smooth cuts along your "pattern". Short, choppy cuts will make jagged edges. Using a sharp pair of scissors is key, since using dull scissors on t-shirt fabric is an exercise in futility and will end up making a hot mess of your new favorite shirt.
Carefully trim and smooth out any little jagged pieces, cutting as little fabric as possible so that you don't mess up the roundness of the line.
I'm sure you'll see me around in my new and improved t-shirt that's a little more me.