You can usually buy them in sports stores such as Dick's or Big 5.
There are many different colors you can buy of silicone wristbands like:J&Rpink, purple, blue, rainbow, black, grey, yellow, brown, green, and different shades of those colors also.
An easy place for a person to buy a silicone wristband is through the Amazon website. They offer a variety of silicone wristbands for sale such as the Power Balance silicone wristband.
One can buy custom made silicone wristbands from the Reminder Band website, Amazingwristbands or firstclasswristbands.com. One can also purchase it from websites like eBay, Wrist Bands Now, Wrist Band Connection, Custom Silicone Bracelets and many more.
Wristbands made of silicone can be purchased from a variety of retailers. Many fashion retailers will sell silicone wristbands, and often times one can find them at mall kiosks. Online, Amazon, as well as other sites, offer these fashion accessories for sale.
There are a lot of options for buying rubber bracelets / silicone wristbands. You can buy them online at Target or Amazon or if you need to get a custom wristband, you can try a site like MonkeyBands.com
At www.choosehope.com you can buy wristbands. They have many wristbands with different quotes written on them, and there's a lot of colors to choose from.
Wristbands online would be the place for you to start your search for custom printed wristbands. They are located in the US, but will ship internationally.
Their website
Help for Heroes is a program designed to provide assistance to injured military members and their families. You can buy Help for Heroes wristbands from ASDA.
look in ur phone book
You can get wristbands from one of the leading online wristband provider http://www.amazingwristbands.com. They provide you wristbands which are made of 100% silicone that are non-allergic and you can be tension free on latex allergy issues.
you can buy them in claires accessories (where i got mine from) hope this helps :)