Another fun toy which turns on both (or neither)

http://www.temptationsdirect.co.uk/p/5998/Leather-Ball-Stretcher/Bondage-Weights-Ball-Stretchers.html

BD167465
Stock: Stock Item

For the more daring of men of there! Both gratification and pain to your testes are guaranteed by adding a bondage weight (not included) onto the end of the parachute and by the nails inside the parachute digging into your balls.

More: http://www.temptationsdirect.co.uk/p/5998/Leather-Ball-Stretcher/Bondage-Weights-Ball-Stretchers.html#ixzz1qYesK8Vy