Like the idea of finding buried treasure on the beach but don't want to look a total prat waving a metal detector around? These could be for you.

Wearing a pair of metal detecting sandals you will stand the same chance of finding treasure but only look half (okay, maybe 75%) as daft.

The sandals have a copper coil built into the right sandal, powered by a battery pack, and using beat frequency oscillation can detect the presence of metal up to 2' underfoot.

When you are standing over metal the £40 sandals will flash, buzz and vibrate giving fellow beach-goers a shock.

... but nothing like the one you could get if you walk into the sea wearing them.