First, prepare few colored paper / card stocks.
Cut them into oval shape, and then cut them into half. On one half, write the upper case of one alphabet; while the other half write the lower case of alphabet, mix them up and allow your kids to match them.
You can use these Easter egg matching activity to match numbers with words, to match alphabet with object, match the shapes with words etc. They are many ways to play this activity.
You may laminate them before cutting them into half for durability and for future use. Enjoy and have fun!