I did it to my coralife SS 220 the other day after readling about it on RC. I found the mesh at home depot : gutter guard. Yellow lable / black mesh 6"x50' roll, so I have just a little left over. Works well. I cut four layers of the mesh and zip tied it to a dead impellar assembly I modified from another pump to make fit ( I didnt want to use my needle wheel as a test mule, found it at my LFS.. they had a bunch of dead ones so I just matched the impellar size up with the one I had in my pump) .. removed all the fins but four (to make a cross)and then cut them down with a dremal so they were very thin... enough to support the mesh and hold it steady so I could zip tie the mesh to it. Cut the mesh into a circle to fit back in the pumps volute and leter rip. Looks like more bubbles in the chamber.
I went with the gutter guard on account of it being a thicker material. A few others on RC had problems like christy5 mentioned about her mishap with the pot scrubber. No fun picking bits out
thats for sure.