Using the second picture above as an inspiration, I attempted to make a cute ruffle dress out of three men's thermal/waffle shirts. I purchased the shirts for a total of $10 from my local Goodwill store and used sewing supplies I already had.
Step 1: Materials Needed
Three large or extra large thermal(waffle) men's shirts (at least two have to be of similar color)
Your best-fitting t-shirt or knit top
Your best-fitting pencil skirt
Shoe box top
Basic sewing supplies
--Chalk or fabric marker
Step 2: Create Top
Try on the thermal top, making sure it is as straight as possible on your shoulders. Using chalk or fabric marker, mark your natural waistline or your belly button on the thermal. Place top on work surface, and draw a straight line using the chalk to represent your waist line. Carefully cut along the chalk line through the two layers of fabric.
Step 3: Create Skirt
Using chalk or fabric marker, trace around the sides and top of the pencil skirt, leaving a half an inch for seam allowance. (Note: it is perfectly okay if your skirt is longer than the thermal block of fabric. You can add length at the Ruffle step.)
Remove pencil skirt and carefully cut along the chalk line through the two layers of thermal(waffle) fabric.
If needed, trim either the top or the skirt portion so the waistlines fit together.