It's the attention to detail that often differentiates a good product from a great product, but designer Norihiko Terayama goes above and beyond the call of duty with his f,l,o,w,e,r,s ruler, which uses tiny dried flowers to represent the centimetre markings along its length.
It's unfortunately useless to those still using archaic imperial units, but that also means those folks won't be $US220 out of pocket after ordering one. After all, picking, drying, and then individually placing tiny flowers with tweezers takes time, and Norihiko only produces a handful of these acrylic rulers every year. So sending the kids off to grade school with one in their pencil case probably isn't the best idea. [Spoon & Tamago]