BottleLights are USB-rechargeable LED bulbs that make glass bottles glow all moody and sensual. Basically they achieve the same It's time for sexy time effect as candles without the associated fire risks. Designed by Steve Gates and peddled by Suck UK, the cork-esque cones contain a super bright light that diffuses into an ambient glow when their ends meet the mouths of empty wine or liquor bottles. I don't know what happens when Sloshed Sara shoves one into a bottle still half-full of wine or liquor. Probably nothing, but maybe nuclear fission.
BottleLights charge with any USB-compatible device, and can also be used outdoors in place of candles on nights when the wind thinks it's its birthday.