Like most kids, I like to think, I grew up with Legos. This was before they had elaborate kits and shapes (or animated Lego movies or music videos—or social networking sites); I just had a few basic shapes in some primary colors, and that was pretty much enough to keep me entertained for hours. Are Lego blocks environmentally sustainable? That’s a debate for another time—maybe to be animated in Lego—but for those who want a bit more responsibility in their building blocks, there are Earth Blocks: “Made from of a composite of the bark of the cedar tree, compressed dust from sawn cedar logs, and coffee beans as well as other recycled materials.” Hours of sustainable fun. Gizmodo adds: “You won’t find any vibrant primary colors, though: the sets tend to vary batch-to-batch depending on what goes into them, but they all retain the muted, natural hues of the raw ingredients. They come in just one shape and size.” That will make using them to make animated movies a bit of a challenge.