I had an idea of doing a large piece of art with the alphabet after doing these small scale watercolor pieces with my daughter's preschool. There are so many beautiful renderings of the alphabet for sale but really it's such an easy concept to do at home. I'm really please with how it turned out and I'm sure we'll enjoy it for a long time. And what I really like is that it's kid art that doesn't really look like kid art.
So here's how we made it. With a pencil I blocked out a grid of roughly 25, 5x4" boxes on a piece of watercolor paper I had. I also made sure the overall piece would fit into an old IKEA matted frame I had sitting in the garage. I used a set of 4" repositionable vinyl letters to set up the letters in the grid, sticking them down really well. I had an old pallet of gouache paint with a nice range of color in it so we just used that. And away me and my daughter painted over every inch of the paper. While I tried to limit the number of colors we were working with for simplicity, she mixed a few new ones and it turned out beautifully.