I bought an outfit at **DP**yumyum & it was part of the CSR Winter sale. With a CSR purchase item, you get a stamp card. Wear the stamp card & go to all the stores that are participating & get a stamp. When it's full, you get to pick your prize! Go here ~> http://edelweiss.sc/csr2008w/ for details.
This avatar was the prize I chose at the end of it all (dress NOT included)

 
Credits
**DP**yumyum, Zero Style, katat0nik