Had when i worked in a preschool and kids love them! I would use colored sand instead of white salt. DIY salt tray with alphabet cards. Easy to make and kids have fun smoothing out the salt after correctly making the letter
Maybe I can use my old stamps with Playdoh instead of this nasty stamp pad .Fun way to practice making words! You could also give students a limited number of letters and a focus vowel, then see how many rhyming CVC words they could make!