It took till the summer before school for the boys I had to show any interest at all in a lot of academic stuff even though we had been doing it over and over in just about any way I could think of hoping something might inspire them. They loved to make rainbow names. We would line up the crayons like the rainbow Then I printed their name out in black on a page leaving a bit of space between each letter. Then they started with red and traced over the letters, then orange, etc. Yes it was mostly scribbling by the time they got down and after awhile we stopped at purple so only 5 colours and no black to scribble over everything with. I would do my name too at the same time so they were seeing a visual of what they were supposed to do but if they didn't then so what I still talked about what we were doing. We did that a couple times a week and towards the end of the summer more often and sometimes we reversed the colours so on monday it was red to purple and on wed it was purple to red.

Tracing the letters with their fingers gives tactile reinforcement. Make the letters out of felt or various fabrics and glue to cards for tracing.