I have been designing resources for many years as I worked with preschool and primary age youngsters with delayed or impaired speech and language skills. The resources using symbols are free. My latest resources which I have illustrated are extra tasks based on Marion Blank's Language Levels (previous ones have been free). They can be used with groups of mixed language ability and are reasonably priced.
Four sets of cards in chain game format. Words chosen to focus on several spelling patterns and give opportunities for spotting rhymes, VCe words etc. Suggestions given. Can be presented as read and find the picture, or name the picture and find the word. Backed up with a rhyme to read which brings in some of the words used in the games. Illustrated with PCS or Widgit symbols.