A vibrator powered by a hand crank (no pun intended) has gone on sale as the world’s first wind-up sex toy.

Makers say the 'Earth Angel Vibrator' is made from recycled materials and can give an hour of eco-gasmic power for 8 minutes of cranking.

Users wind a built-in handle to charge the £65 device and can select from 4 speeds of vibration or store the energy for another time.

One user said: "It feels good to be doing my bit for the environment and now my husband doesn't keep asking what we need all the batteries for when we are at the supermarket."