Seriously not cool.
The casualties: Justice League Superman mini maquette, Justice League Wonder Woman mini maquette, and Superman/Batman Michael Turner Supergirl.
The culprit: Superman/Batman Michael Turner "Corrupted" Supergirl.
Jumped off the riser, took "good" Supergirl with her, and (somehow) managed to catch the two mini maquettes on the shelf below them. She really is evil.
This happened two weeks ago. I've already replaced the mini maquettes, but I haven't located a substitute for Kara yet. Grrrrrr...