Now you can undo your bra by simply clapping!

San Francisco's designer Randy Sarafan has created
a bra that can be undone simply by clapping. The
battery-powered design uses an electromagnet that
controls a switch which opens the clasp of the bra
when someone claps nearby.
He was inspired by the weird and wonderful hi-tech
bras found in Syrian bazaars and has created a step-
by-step guide on how to make your own. Sarafan
says, "The first time I read about Syrian Lingerie I
was quite moved. It became my mission to fast-
forward lingerie technology in the West. I figured
the first step in this critical mission was to replicate
some of the advancements made in Syria.
The article of lingerie that resonated most with my
inner sensibilities was the clap-off bra."
Although created as a novelty item, Sarafan's
technology could be used by arthritis sufferers as
well as people with physical disabilities. However for
normal users, make sure not to wear it when going
to the next award function!
How to make your own?
Cut the clasp off of the bra. Carefully break open the
casing for the relay to expose the electromagnet. Put
your relay into the centre of a prototype circuit
board and make cut marks around the outline of the
relay. Cut two prototype circuit boards to size.
One board should have a 1/4 trimmed off of each
long end, such that you are a left with a long strip.
The other board should be cut to a small square
using the markings you made in the outline of the
relay. Put together the circuit using the 28-pin
socket in place of the ATMEGA168 chip.
Cut the ends off a USB cable to leave a section of
cable roughly 6" to 8" long.
Cut a small bow-tie shaped section of fabric that
will fold over the front of the bra - the part the
clamp is attached to.
In the centre of this bow-tie cut a small opening and
fasten a grommet.
Insert a bolt through the grommet from the back
towards the front and fasten it with a nut.