This is Yandy Smith from Love & Hip Hop (Jim Jones Manager). This pic is from her twitter profile and I found this coat to be FYRE.COM! I love the ruffles on the back; this gives the coat a feminine touch.
You can order some screw in spikes (ebay/esty) or some studs and put them on a trench from the good will if you don't want to use those little wooden tooth picks.
SOURCE: WHOWHATWEAR
Or, if you are not crafty then you can spend $200-$240 on these trench coats from Celeb Boutique.com
-Kimora