I was shopping for this party I had to go to in anthropologie, and I happened across this shirthttp://www.anthropologie.com/images/us/local/products/detail/41137_dt.jpg
And I thought to myself, "Me oh my, wouldn't I look luverly in that?" So I was all ready to fork up my hard earned cashola when I sneaked a lucky peek at the price tag and notice that this little ol' destroyed top was 60$!!!!
Needless to say, I went home empty handed. I tromped up to my closet and hauled out a boring old normal black t-shirt and a pair of scissors. In about 3 seconds I had an exact copy. All I did was cut of the collar part and the sleeves. Leaving an unhemmed tank top. I cut the shoulder part that was left into two parts, with the slit inbetween them going as low as the armpit. I cut a strip from the removed sleeves and tied the two straps together. Voila! My own Anthropologie knockoff!
In conclusion, Anthropologie is a great place to get ideas to make very easy and elegant alterations on basic clothing. I plan to spy there again in the near future.