I use the plastic inner frame feeders, it holds almost a gallon. During the few time using this feeder i would always drown lots of bees. But, now I have found a great way, worked last year pretty good, only a few drowned bees.
It is handy because you don't have to add a super to encompass the can/bottle, whatever is being used to feed the bees. I put pieces of wood to float in the syrup. I pour the syrup in very very slowly, the bees move up and out of the way. No dead bees to speak of. I was going to also try the baggie feeder for smaller feedings, that seems like it would work well too. But I think I would place it in a small tray, like was said in another post though, in case the baggie leaked and the syrup went everywhere. Good luck with your syrup feeders.
I do like Brian's empty paint can idea a lot. But then there is the thing about having to put on the empty super. I wonder if this would cause the bees to work harder to keep the hive body warm because of the second box on top?
Have a wonderful day, beautiful day, good health to all. Cindi