This piece is designed to have 3mm dia magnets embedded in its side. When several are printed they can be assembled into a gyroid shape.
The sample was printed in a Stratasys BST-768. I'm not really sure how this would go on a MakerBot.
Each gyroid block requires 12 magnets (be careful to install them with alternating polarities.)
The 3mm dia x 3mm long magnets can be found at Gaussboys. Product #C0303. They are about $0.08 each.