BUT, here's why you should NEVER do it!!
1. Weep holes are small but mighty features in cavity brick walls. They are specified in Australian Standards so air can circulate and you don't get damp problems in your house. And, if there's a leak, or an overflow, for example from a plumbing pipe or gutter overflow, water can escape outside through the weep holes. Both steel wool and pot scrubbers are much too dense to allow weep holes to do their work, so while you may solve one problem in the short term, you may well create a much more serious one down the track.
2. The steel wool used in these products is not designed for long life or outdoor use so you risk staining your bricks and render over time.