So, I've just tried something for the first time in our AISS course (Accelerated Integrated Science Sequence) to teach the idea of bonding overlap, andtibonding overlap, and orthogonal (non-bonding) interactions.
I made a ton of paper cutouts of various 1s, 2s, 2p, and 3d orbitals from Chemdraw, and passed them out to tables of four, and I announced that we were playing a game of "BOA, BOA, BOA! (TM)". Their goal was to come up with ways of overlapping the orbitals to get "B", "O", or "A" interactions. They would overlap the paper orbitals, and I would tell them whether they had a B, O, or A arrangement.
After several minutes, they were starting to see patterns. I then told them that these stood for Bonding, Orthogonal, and Anti-Bonding interactions, and they went back to finding more. I told them to create nine pairs to spell out BOA, BOA, BOA! as if it were Bingo. They seemed to have fun with it, and I had less confusion of antibonding and non-bonding than I usually do.