Pre-Tied Black Ribbons With Elastic. Why spend the time and frustration by trying to tie a bow onto gifts, favors and more? These Pre-Tied Black Ribbons With Elastic make finishing presents simple and quick. They look great on favors for weddings, engagement parties, fundraisers, baby showers and more. Color coordinate them with our mini gift boxes (sold separately online) for an easy-to-make treat box that all you need to do is fill. (2 dozen per unit) 3" diam.