LITTLE DARLINGS-Little Darlings Collection: Unmounted Rubber Stamp. Little Darlings stamps are available in every design imaginable, there is a stamp that will accent any themed project. The rubber stamps are deeply etched stamps made out of a natural gum rubber. Stamp can be used unmounted or works easily with Tack N Peel (sold separately). This 3-3/4x5-1/2 inch package contains one rubber stamp. Design: One Of Those Days. Made in USA.