My LO is 7 months and since birth has been a champion breast feeder and at taking a bottle of expressed milk (and a handful of formula feeds). However we starting weaning a month ago and when my DP tried a bottle a few days ago he refused 
we've tried formula and breast, and a bottle and his cup and straw that he uses for water with meals, and nothing. Lips pursed, head turned away, not having it.
Any ideas of how we can get him back on a bottle? I was just about to start giving up breast feeding so this is terrible timing. Thank you