As you can tell from the partying pet piccys, this year's Petchitecture event was not only eco-friendly, but totally fun as well. The unique fundraiser to support the PAWS organization featured specially designed habitats that were auctioned off and all had two things in mind: pets and Mother Earth. Thankfully, that nod to the planet extended all the way to the inner workings of the event itself, which cut its mailed invites from 10,000 to 1,500 (printed on 100 percent recycled paper with soy-based ink), eliminated event programs, and had any posters printed on recycled paper as well.As for the designs, this one by William Duff Architects was my fave – with a solar device that cools the inside – perfect for your cat or small-sized pooch. It didn't stop there as the event featured tons of genius and hip designs! Check out more in the gallery when you read more.