We use a smaller type than the one in Eric's link and also a wire mesh one for the 'Peanuts' and a plastic tray made from part of one of my daughter's old toys .
We have the feeders hung in a plumb tree on 1/16th Steel wire to stop the squirrels biting through and steeling all the food when it falls on the floor
.
The fat balls, if they come in a plastic mesh bag I take it out(because the birds can get there feet in it and get stuck
), make a small hole through it and hang it on a piece of wire.
Phil sent you a PM last night !