Got this activity from No Time for Flashcards, my favorite site at the moment. They got lots of wonder crafts and activities for your young ones! Just to clear things out, I am not taking credits for this activity. Again, I sourced this out from No Time for Flashcards. The only reason why I document it the way they do is for me to be able to re-do this activity again in the future.
Here’s how my Letter N goes.
1. Prepare all the materials needed: colored pens and crayons, a letter N written on a piece of paper (as large as possible), a black colored paper, glue, and numbers written on colored papers. 
2. Write a capital letter N on one whole sheet of paper. I let Mavi color the letter N using his yellow and green Giotto washable pens.
3. After the coloring activity, I cute the letter N and made him paste the number strips on the letter.
4. Then he still wanted to color the numbers hehehe.
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