With all of my training kids that are getting to the point of just lazy or who are actually reaching the point of success same process - Either me or mom puts a happy face on the pullup with a sharpie marker first thing in the morning or if me with first pee of the day. IF the child goes home with the happy face diaper they get their reward - whatever method parents want to use. That allows me to praise the child at daycare for keeping their happy face without having to dole out each child's prizes and others not get. They soon catch on and get really upset when the happy face has to go in the garbage.