Hummzinger Excel Hummingbird Feeder
If you get a ton of hummingbirds, you may like the Hummzinger Excel. It holds a whopping 16 oz. of nectar and has 6 feeding ports. It also has a built in ant guard.
Remember the change the nectar and wash the feeder about every 4 days for the health of the hummingbirds (plus they will hate you and probably not come anyway).