Do you want to know what's truly useful?

A full line of products with no metal hardware for those with autoimmune and neurodegenerative conditions involving sensitivity to EMFs.  

For examples:
i) beds without metal bedsprings.   Also, no latex as lots of people have problems with it.  (Sorry, Casper doesn't work -- lots of plastic and latex involved)
ii) Shoes without buckles and metal grommets.
iii)  Non-metal zippers that are both functional and non-clunky.

There are no underwire bras around made of non-metal wires.   This causes lots of problem for women in airports and those who are allergic to the toxic EMF smog that engulfs us in modern life.   Wonderbra was invented in Canada, so why not come up with a non-metal wired version to continue the tradition of innovation!

For people with EMF sensitivity, a metal shoe grommet/eyelet can leave a "burn".   Nike has some shoes without any metal -- I have to wonder if they have caught on to this.