Classic wooden handled palette knives, bone folders, paper piercers, rifflers, rasps, afghan crochet hooks, double ended needles, thimbles, air guns and inks. (blog.folksy.com)
It will start to get a bit tight as more shapes are added; add the glue first and use a bone folder or stylus to gently push the paper into the shape. (littlemisscelebration.com)
Holding the cover of your notebook together with the card, and keeping the spine in line with the crease, fold the excess card over the cover and crease it using a bone folder or your finger nail. (fellowfellow.com)