I have a couple of nieces with birthdays in January and one coming up in May, so I've been busy sewing a few skirts. For one January birthday I used this Ruffled Skirt Tutorial from Grand Revival Designs. LOVE this skirt- whipped up fairly quickly and looks darling. She says in her tutorial that the size is for a 5 or 6 year old, but I used her sizes and it fits my average-sized 4-year old niece perfectly (perhaps I like skirts a little longer than some people).
For the other two birthdays I used tutorials we've featured before. The Tiered Skirt- it turned out darling and did not take that long. Definitely a project for any beginner (which I am). I also made the Sidney Skirt. The fanciest looking of the 3, the most difficult, but doable even for me.
If you're looking for some good tutorials for some cute skirts- give any of these 3 a try. If you're planning on making a lot of skirts (or even just one of each of these), I would recommend investing in a ruffler foot for your sewing maching- it was a LOT of ruffles.