Yukio Takano’s miniature mushroom lights is definitely worth having on you desk. They’re pretty realistic, and in the dark, they glow like something enchanted. The mushrooms are made of synthetic material and embedded into pieces of driftwood, looking like they sprouted out overnight. Tiny LED lights are incorporated into the mushrooms which gives them their otherworldly glow. The batteries are located on the underside of the driftwood and the switch is placed somewhere unobtrusive to maintain the illusion of authenticity.
See more of his work here.