Please note: I am an amateur sewer, so some of my terminology might not be correct. I hope it's easy enough for anyone to follow. This is also a pretty forgiving project if you make a few mistakes in measuring and if your lines are crooked (as several of mine are)
Step 1: Gather your materials
Apron ties: I found loops of t-shirt fabric on clearance at a local craft store and that is what I used for my aprons. However, you could use bias tape, cut your own t-shirt loops (by trimming a 1-inch section off the bottom of a t-shirt, cutting it into one strip, and tugging on it so that the ends curl in), ribbon, yarn, or any other material that would function like apron strings. A drawstring threader is also helpful if you have one. If not, you will need a safety pin.
Measuring and cutting tools: A rotary cutter and cutting mat are not necessary, but they are extremely helpful. When I originally made my aprons, I did not have a cutter and mat, so I used a good, old-fashioned yardstick and scissors. You will also need a ruler and a marking pen or chalk.
Sewing tools: I used a sewing machine, but I imagine the project could be hand-sewn as well (although it seems like it would be tedious to me). I also recommend using straight pins to pin the fabric before taking the piece to your sewing machine. I used matching thread, but if you wanted your stitches to be visible, you could use contrasting thread.
Embellishments: I did not use any embellishments on my aprons, but you could add buttons, flowers, or any other decorative elements as you see fit.
MIsc: I use an iron and ironing board to help create some of the folds when sewing my hems. If you don't feel it necessary to press your folds, then you will not need an iron or ironing board.