I have one 4oz Dr. Brown's bottle with a slow flow nipple and an unopened package of 3 medium flow nipples. I'd gladly hand 'em over to anyone if they want them! (Maybe in exchange for Playtex Advanced Air bottles -- medium flow -- or Enfamil coupons? Or Pampers diapers -- size 2?)
Also, adamswife informed me she has 5 Dr. Brown's bottles she's trying to find homes for, too! I'm sure you can contact her for her deal. Let me know if you want 'em! First come, first serve!