How to Widen a too tight skirt with ribbons or panels of triangles or oblongs

Problem
Your skirt is too tight.

Answers
You can let out a seam or insert fabric.

SEAM
Look for which seam is easiest to slit open.

Does one seam have lots of extra material?

Is the skirt the right length?

If it is too long, you could cut the skirt shorter and use the cut off fabric to make it wider.
If you don't want to sew up the seam, add fabric and make it a wrap around skirt.

You could insert two ribbons of fabric, one either side. Or two large panels, one either side, or one or two or more panels, either ribbon shape, or tapering to narrower at the waist. Alternate two types of fabric in the same colour, such as two matt black skirt panels with two pieces of black ribbon, or two same type of fabric in different colour such as black satin and pink satin.

To find extra fabric, separate your skirts into three piles, just right, too small and too large.  You might be able to move fabric from the too large garment into the too small garment.

Another system is to make a colour block dress like a checker board.

Author

Angela Lansbury. 

PS Pick two contrasting but complementary colours, such as black and red or pink and navy.