I think HD is a bit pricey. I by mine at Lowe's as they have regular discount but normally I can buy a medium size hanging plant with lots of overflowing stocks for $6 and their variety to chose from is much bigger and better. After separating and cleaning the stocks, save the dirt and tiny stocks you will not be using and replant them using aquarium water to water them and they will grow for your next tank project although not nearly as well as the ones inside your HOB. Remember to tang the stocks to the wall with tiny finisher nails and dental floss with the root stocks in the HOB with no more then 1.5 inches of the stock submerged below the root line. In other words just like in soil the roots can be submerged but no too much of the stock. this is why you adjust the floss at the nail by just raping like tying up a boat line so you can make adjustments as the plant grows.
Here is a pic of the same plant on the same tank when I first planted into my HOB.
BELOW PICS ARE HOW I DID IT
You will need a cheap waxed dental floss to hang the plants stocks inside and over the HOB reservoir and 1” finisher nails to secure the dental floss to the drywall and a small hammer to drive the nails into the drywall at a 20 degree angle.
Use a slip knot in the dental floss so that you can adjust the size of the look over the tallest leaf stock and so that the slip knot will self adjust as the plant grows not cutting off circulation. The dental floss should be long enough to reach the nail with plenty of slack to rap around the nail several times (NOT TIE) for later adjustment (shorten or lengthen ) as needed.