T.B.
Try a straw...my son skipped the bottle and sippy and wants a straw like his big sister. We introduced other fluids around 6 months and he was otherwise breastfed until 14 months. His sister took to the sippy like a champ, but she also took the occasional bottle. Good luck - just keep trying:)
And there is NO problem skipping the use of the bottle - I wouldn't even deal with it at this age.