1) Office holders 2) Pant waist inserts 3) Rubber bands 4) Rubber bands on braces 5) Some bands 6) Stretch items 7) Stretchable fabrics 8) Stretchables 9) Stretchy stuff 10) They keep things together 
Rubber bands. During certain stages of treatment, small elastics or rubber bands are worn to provide individual tooth movement or jaw alignment.
Common misspelling for Elastix.