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.
For improving recognition of the CVCe shape. Three sets of cards for playing Pairs where a pair will have one word of the CVC shape (e.g. ROD) and the other of the CVCe shape (RODE). Suggestions for including work on using the words to make sentences, as well as reading them. Illustrated with PCS or Widgit symbols.