Unspillable kid’s cup

Now that I am a grandfather I interact with kid stuff again. There’s a new generation of drinking cups for toddlers way beyond sippy cups. Munchkin cups ($6) use an ingenious weighted straw that deliver liquids to a child in any cup orientation with zero spillage. They are a hi-tech marvel, with 47,000 reviews on Amazon. They really keep liquids tight. — KK