e-Paper updates the slap bracelet

Remember "slap" bracelets? Always oh-so-much-fun, until some kid called Cecil cut his wrist with his and the teachers confiscated the lot...

Anyhoo, the idea has been given the 21st century treatment with this concept design from the Chocolate Agency.

An e-Paper bracelet that needs no battery as it gets it juice from kinetic energy, giving you all the excuse to slap away you'll ever need, and Cecil be damned.