It's the Roaring Rose headband from Anthropologie, it was being sold for $24 in November/December but doesn't seem to be available on their site anymore...
http://www.anthropologie.com/anthro/catalog/productdetail.jsp;jsessionid=05A5AAD185035405BFE5D6ACB66B93AC.app42-node8?cross-sell=true&color=cre&navAction=jump&navCount=1&id=844327
50 euro an episode
Talk to the lady in the Goldenrod City flower shop after defeating Whitney.
its in the city where Whitney is and after u beat her just go to the flower shop which is on the top right corner of the city
You can buy it in the Flower Shop next to Whitney's Gym in GoldenRod City. -PokemonMasterSkitty
You get it in Goldenrod City. You have to beat Whitney, then go in the flower shop and the lady will give it to you.
After beating whitney in goldenrod go to the flower shop in the northeast part of the city and the flower lady will give it to you.
The SquirtBottle, which is used as a watering can, can be obtained in the Flower shop. After beating Whitney of the Goldenrod City Gym, and getting the Badge from Whitney, you can go to the flower shop next door, the worker there will then give you the SquirtBottle. :D Hope this helps :)
After you beat Whitney in the Goldenrod City Gym, you can get it from the girl in the flower shop to the right of the gym.
The squirtbottle is given to a girl in the flower shop after beating Whitney the goldenrod city gym leader.
after you beat whitney, go to the flower shop in goldenrod city (it's by the gym) and talk to the girl. she will give you the watering can.
Whitney is in Goldenrod City.
In the house next to the gym i goldenrod city when you have beaten the gym leader!!