Won't drink from sippy cup

Maggie has no decided that she only wants to drink from open cups. She has been refusing her sippy cup, shaking her head at me and handing it back. It took me awhile to work out that she want the lid off, then she would happily drink from it. The problem is that she makes such a mess and gets herself very wet. I wouldn't mind if it was summer, but not with this colder weather.

Any ideas, is it just a faze or is there some open cup that is less likely to spill out there?

Astrid - Have you tried her with a straw? Lucie is hopeless at working out that you have to tip a cup up to drink from it but very happily drinks from the straw of her mag mag. It's great!

IKWYM, DS is drinking from his sippy cup, but loves to fill his mouth and let the water pour out from his mouth all over his top! He gets saturated from it, thinks its hilarious too. I have reverted back to the bottle til summer time LOL!