I use these all the time, just for a little bit of fun or as a 5 minute activity in my classrooms. I give the student a letter sound and ask them to go find it on the wall. Then they have to try to say the Tongue twister to me and to the rest of the class. As a little work book it can be used to practice one a week or one a month. You can also video them saying them and send to parents if you use apps like Seesaw or Padlet.
There is a free and editable version. This one is the fully editable one 🙂