It’s not clear how many people helped form the symbol, but a parent of one student who was at the party said that, as more cups were added and moved around, someone noted that it was starting to look like a swastika and completed the image. When it was done, a dozen or so teenagers crowded around the display and posed for photos, their arms raised in a Nazi salute.

Source: Los Angeles Times March 12, 2019 14:26 UTC