Go to EBATES so you can earn 4% back on your purchase.
Search for CROCS on ebates, and then click through the link.
On the bottom right is an ad for DEAL OF THE WEEK, there you will find the mary janes.
When you are checking out use code: secondchance - 15% off & Free Shipping
My total was $12.74 shipped.
There are other crocs on sale as well and the coupon code should work for them too.