This ingenious floating gizmo projects several seriously psychedelic multicoloured light sequences onto the bottom and sides of the bath.

It's truly hypnotic, especially as the pulsating effects are distorted by the water in the tub. Put on some suitably upbeat music, dim the main light and strike that legs apart, arm in the air pose made famous by John Travolta and you could be in Studio 54, albeit nude and soaked in hot water. Not such a bad thing in our book.

Battery-operated and 100% waterproof, the Underwater Disco Lightshow features a button that changes the patterns (some subdued, some dynamic), so you can alter the mood in an instant. What's more its curvaceous shape causes the lights to reach out to every corner of the bath. If you're feeling really decadent you could even plop this plastic doodah in your pool, pond or hot tub. Water based shenanigans will never be the same again.

Features:

• Contains red, green and blue LED lights
• 4 different light combinations
• Clear plastic case
• 100% waterproof
• Battery Requirements: 3× AAA Batteries – Not included
• Dimensions: 8.5cm x 8.5cm x 8cm