Air pruning buckets

I took two buckets and cut the bottom out of one, and most of the bottom out of another.
I took the first bucket, inverted it and laid a 15" x 15" expanded metal mesh over the opening.
I then place the second bucket over the first, pressing down with my weight and ultimately sitting on it.
This firmly sandwiches the expanded metal mesh between the two buckets,creating a mesh bottom about 1.5"  from the bottom of the outer bucket.

The photo doesn't do it justice but the idea is to use them to propagate trees from seed,transplanted volunteers, and cuttings.
I have added some nylon line to the bottom of each.
I'm hoping it will wick water into the soil, but I'm not counting on it.