This is such a cool idea. It's a custom bracelet of a soundwave
rendered in 3D. The bracelet is "designed" by the waveform of the
message it encodes. And they're a steal of a deal at $18.
The bracelets are part of the Sound Advice Project, a teen anti-drug
abuse initiative, geared at getting parents to talk to their kids. The
idea is that, as a parent, you record some message to your child
("Drugs are bad, m'kay") and he or she carries that message with them
at all times. Not sure that giving a 3D model of a soundwave is really
the most direct way of talking to your kids, but it sure gets points
for creativity and conceptual chutzpah.
It doesn't say anything on the site (that I could find) about recording messages/making bracelets that aren't teen/drug-related.