I used to be on the lookout for the perfect cup that I would take with me for cup feeding. In the meantime since I do home visits we usually hunt around the kitchen and we can always find something that works. It makes it feel less technical and I've come to like that approach. We have used shot glasses, juice glasses, paper cups, medicine cups and bottles without the nipple. That last one a mom came up with and she called it bottle feeding which made me nervous. It is helpful if it's clear. One of the problems I have with it is some babies like to open their mouth real wide and root which we want them to do at the breast, but it doesn't work well for cup feeding. Usually in those cases I try to supplement at the breast. Otherwise cup feeding is my favorite method of supplementing because I think it interferes the least with breastfeeding. I tell moms that it's a method of feeding but it doesn't provide any sucking gratification. Since babies have a strong desire to suck, hopefully his/her natural sucking instincts will be allowed to happen. Any other ideas out there. Marilee Woodworth IBCLC, Private Practise