LOL! Got it.I'm thinking something gutter-like (not my mind!) with lots of holes in it (Again with the mind-analogy)
I used a section of a clear plastic water bottle over the outlet on the Aqueon quiet flow 50 I ran for awhile. I taped it to the top/front, such that it deflected the water flow towards the rear of the tank. It was OK, but caused the filter to bypass more than it normally did.