I'm looking for a better snack bowl that have that flexible lid with slits that little fingers can reach in a pull a small snack out (like Cheerios) but can't be easily dumped out. We've used the munkin one in the past, but it isn't really working well anymore so I'm in the market for a new one- i fill ours with cheerios and let dd2 ( 15 months) work in it while i walk her in the stroller- but she turns it upside down and they all spill out. does anyone have something that works well?