We have been drinking from cup for about a week. They spill once in a while when they get in a hurry.
I try to remind them to use two hands.
We are using votive candle holders and I only fill it up half way. I got them at Dollar Tree.
The older kids are drinking from juice glasses. I do worry that they are not getting the same amount of liquid as they were when drinking from a Sippy cup. So they are able to get a drink of water when they want and have been drinking from a straw.