There is a free site called TYPOGRAFFIT® that is a creative and fun way to practice spelling words, make sentences or write simple stories. You can make plain-text into a unique visual message.
It's free to use and no log-in or user account is required. Simply use it directly from the above website. Type the words into the blank box and click Generate. It will change the words into visual form! Click Generate again and the form changes. There is a toggle button that changes the window from text to image. Children enjoy watching their words become something magic!