Bottle cap letters are easy to create. Start saving a variety of caps from water bottles, milk jugs, juice bottles, etc. You will be surprised how quickly the caps add up! Mine don’t all match but that makes it fun! Use a sharpie pen to write a letter directly on each cap. Or for a more colorful moveable alphabet, write letters on dot stickers and place them on the caps. Now make a trip to your recycling bin and get started!