At the Filth Widzardry blog, you’ll find a neat little blog post on DIY spinny spellers and re-purposing Duplo bricks which shows you how you can use those ubiquitous Duplo blocks (and other play-blocks) that your preschooler has outgrown and turn them into reading and spelling (and literacy) aids.  The Duplo blocks are ideal for making color-coded consonants and vowel blends, and helpful for distinguishing between nouns-verbs-pronouns, etc. The blogged piece has charming photos to inspire you towards your DIY project.