Creative. This reminds me of something similar. About 2 months ago my postman showed up with another twisty puzzel packaged and he commented that it semes like all I order is cubes. A few minutes later I was thinking "How the heck does the postman know that my packages are twisty puzzles?"
Well last week he showed up with an envelope and he commened "and this package isn't even cubic for once". He was taking about the shapes of the boxes, not their contents