K.F.
Hi A.!
I bought the Playtex ones that has the soft straw included that you can close up. When my daughter would tip it over, it's sealed so nothing comes out. I also just let her play around with it as well and she eventually got it. Yes there were a few instances with water or juice in the face, but with the Playtex ones I didn't have a problem.
Best of patience,
K. :~)