F.G.
I would definatly try different cups my 19 month old hated the sippy cup so I tried the nuk version it has the thick kind of silicone spout so it is almost like a bottle and it is pretty much spill proof. What helps is if the cup doesn't have a stopper it is easier to get the drink out until they get the hang of it. A couple of weeks of that and then you will be able to move onto the normal ones with hard spouts and stoppers. Good luck!