The phrase memory bracelet can refer to two quite different types of bracelets, one which features a memento of a loved one, and the other which can 'remember' its own shape.
The first type of memory bracelet is similar to a locket. The bracelet, which can take any form, whether a metal chain or a beaded strap, includes a small picture frame, into which you can insert a small photograph of your child, boyfriend, husband or other object of affection. Basically, anyone whose photo you want literally on hand at all times is a suitable candidate for being enshrined in a memory bracelet. Memory bracelets can range from simple 'gold-tone' chains with plastic 'gold-look' frames, to elaborate -- and costly -- affairs with precious metals and semi-precious gemstones.
The other type of memory bracelet is one made with 'memory wire'. This type of jewelry-making wire is sold in coils and will always snap back into its original coil shape after being contorted into other shapes. A typical bracelet made with memory wire might be beaded with semi-precious gemstones such as polished amethyst, quartz and citrine, all along the length of the wire.
Memory wire doesn't require fastenings or findings; you don't need to add closures to a bracelet made of memory wire. Simply turn the wire back in on itself and tuck it inside the drilled hole on the last bead. A memory bracelet can have as many coils of spiral as you want to wear. A small memory bracelet might wrap twice around the wrist, but if you have the beads for it and don't mind the weight, you can make a memory bracelet that will wrap three, four or even more times around your wrist.
Memory wire bracelets may be slipped on over the knuckles, or the wire may be spread apart so the bracelet can be wrapped around your wrist. Memory bracelets can be worn on the wrist, upper arm or ankle. Wider coils of memory wire -- that is, wire that has been coiled and trained to a larger circumference -- are available to make memory necklaces with.