Can you recommend the better ones? I have at least 4 types and he won't touch any of them so has never drank from a beaker. He just chews on the spouts and makes no attempt whatsoever to suck. I've got Nuby (sp?) Avent, tommee tippee and one my nan bought but it wasnt non spill so only tried it once! I got him a couple of those bottles with a hole in the centre so he can grip them and he drinks from that no problem and they have completely different teats to what his avent bottles have so I dont think its a case of him disliking the change. He just doesnt seem to understand he has to suck! I even put milk in a beaker but nope, still no go.