I was just browsing Ebay and saw these cute little cups that someone might like to look into. They look pretty east to use.Error, missing URL. 0

Clickable:

http://www.ebay.com/itm/Bird-Cage-Hanging-Steel-Blue-Plastic-Water-Feeder-2-Pcs-/220991009880?pt=LH_DefaultDomain_0&hash=item3374173458#ht_1427wt_1110

I am not a fan of using toys that have the ribbed pieces that go between the bars. To get them in tightly you have to force the bars slightly for the item to be held securely. It is easy to pop the cage bars at the weld points if you push these connectors in a bit too hard.