Has anyone here tried the foogo straw cup? My son has no desire to use either of his sippy cups (he has a klean kanteen and a born free). He likes to use a real cup, which is fine around the house, but doesn't work when we go places. He likes to use a straw, so I think this might be a good choice. My only concern is that all the pictures that I have seen have shown older toddlers using them. I don't know if it will be too big for his 12 month old hands.