(De)Light: Liquid Light project from the Royal College of Art
This looks like it could have some great applications for portable lighting and lighting in tough spaces as well as looking really sweet. According to the post, the possibility exists for rechargability- even better! (from Core77)

I love Benjamin Hubert's Yumbrella bowls! (from Designboom)

Also Seizure by Richard Hiorns- chemistry+ art, turning a delapidated flat into a magic cavern....
(from Make) more photos here