We're all nuts for good design.
Lovely Package (and its recently opened sister site, Lovely Stationery) is a site collecting examples of excellent (and excellently quirky) package design from all over the world, and includes both professional work and student work. The idea of doing three-dimensional design tends to scare the everloving snapdragons out of me, but seeing the work featured on here is very inspiring and gives me ideas to file away for potential use later (in either my standard illustrative 2D designs or for an actual 3D product design later).
As someone mentioned in a blog post (or a blog comment?) earlier, playful design like this can really connect with people because of its playfulness. In this case, it's not really about the product itself; it's about using design to sell an experience that features a product. I was reading a marketing book recently that cited a case study in which they tested the claims of a company that said that the specific designs of their wine glasses supposedly enhanced the taste of any wine. The people who ran the case study eventually found that while wine drinkers (I think it might've been both experts and casual drinkers) reported better taste when they were aware of the wine glass design and what it was supposed to do, when wine glass design was screened out, almost no one could tell the difference between wine from a regular glass and wine from the "special" glass. It was the drinkers' experience/expectation of what the wine glass would do for them that enhanced their experience of the wine. I think this indicates that design is heavily psychological beyond a simple "yellow is a happy color!" sort of paradigm, and I wonder if there should be (or is already) a required class called "The Psychology of Design" or something that would teach budding designers how to brainwash the masses -- I MEAN teach designers how to effectively utilize psychological principles in creating their designs in order to better connect to their audience.