We went to Lowe’s! It’ll be in the section with the different nails and screws. It’s like a super small section but we used the largest square magnets for the hanging plants and the larger circle magnets for the branches. We used J-B Kwik Weld Epoxy to adhere the magnets to the sticks and aluminum square flat like the one in the picture.
Make sure the flat is not flimsy but also isn’t too heavy. We used aluminum because of this and because it was easier to saw through to make multiple bars for multiple levels within the enclosure.

we liked this idea because we poked way too many holes in the last enclosure lol
Let me know if you have any other questions!