I've not yet ventured into shirring myself yet, but let me tell you, I'm off to find myself some elastic thread this week, with a refashioned top half complete, and a handful of inspirational refashions involving shirring below.
DIY Zipper Ruffle Shirred Shirt
From this boring old shirt...
... to this nifty fitted top..
full tutorial found on countrywomanmagazine
Man's Asymmetrical Shirt Refashion with Shirred Back
Another boring old shirt..
...to a fantastic asymmetrical tuck fronted top,
with shirring added for fit around the waist at the back
As seen on Sewing Princess
T-shirt Side Gathering Refashion
Large man's t-shirt, into fitted top with side shirred gathering
full tutorial seen on Sugar Bee Crafts
Adult T-shirt to Child Dress
.. to this
Full tutorial found on Create and Delegate
Button Up Shirt Refashion
This particular refashion was designed as a maternity top, with shirred back
Full tutorial on megan nielsen design diary
For more online shirring tutorials, there is a smock tutorial here, another one here, and another tutorial here. I can't wait to give shirring a whirl on some of my own refashion projects.