I am teaching the letters Cc and Kk together next year. The reason I am doing this is because their main sound is the same. This way I can talk to my kids about that and use these materials to help reinforce it. I will also be giving away three free letter Cc and Kk units. Just email me at firstname.lastname@example.org with the heading: LETTERS CC AND KK. Good luck!
Here is my link on TpT: