Description: Well, this might not be a solution (well its been solved here though), but surely interesting metaphor to your question. Have a look and enjoy it, and do take care of your lunch box while looking at it.
So it all started in and India company (details in the link provided as source). One of the employees got frustrated when every time her chocolates been stolen from the office refrigerator, so she decided to take it one on one (or may be one to many ;) ) and posted a printed note:
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File list (Check if you may need any files):
harr\cat.png
harr\cos_harr_composition.png
harr\harr_part1.m
harr\harr_part2.m
harr\high_frequency_data.png
harr\low_frequency_data.png
harr\sin_harr_decomposition.png
harr\transform.m
harr
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