I love these reusable glass straws by Glass Dharma. They sent me a few samples of their straws, which come in various sizes and styles including bent and with colored dots. They also offer cleaning brushes and sleeves to clean and protect the straws as they are used. Maybe not great for young kids but if you’re a sipper, why would you use plastic straws ever again?
This one was the perfect size for my glass milk carton:
And yes, they’re dishwasher safe.