They make Oriole feeders that hold the same thing hummers like, a mixture of 1 part sugar to 4 parts water, microwave to a boil and let it cool, then put it in the feeder. Unless you get a big hummer feeder with perches built in, the other kind are too small.
They also sell jar lids for feeding grape jelly, but please, never buy one, and tell the store to not sell them. When the jelly level goes down, the birds reach further in and eventually get trapped and die in the jelly by drowning. Also, never, ever mix honey with water and sugar for the hummers or orioles. Honey has been shown to cause cancer in their tongues and beaks. 