I've been having a lot of fun reconstructing clothing out of thrifty store finds lately. I get a great deal of satisfaction from this. This particular tunic is made from a linen jumper (below) that I found for $2.99 and a full length black linen skirt for 99 cents.
Basically, I cut the extra length off the jumper, added that to the sides and made a large border of black linen on the sides and bottom. I changed the buttons on the front to little black buttons and took the back ties and moved them to the sides.
And presto! A funky tunic that I'll have fun wearing over leggings. I have seen something similar on-line for $295 ... I reconstructed this in an evening for under $4.