A.L.
Give or throw them away.
Get the sippy cup with the soft top (the one most like a bottle). If he's throwing a fit just take it away and ignore him, it won't hurt him to miss it a few times. He'll catch on quick his two choices, sippy cup or nothing. When he's truely hungry/thirsty it won't matter to him what it's in.
Talk to Daddy about giving in when he's throwing a fit.
That's a really bad habit to start.