Instructables has a great tutorial for a Biscornu pincushion and scissor fob. You will need to sign up for free membership to download the PDF pattern but it was quick and painless.
Biscornu (offset square cushion)- Biscornu is a French adjective that means "that which has an irregular form, with projections" or "complicated and bizarre."
To a seamstress or an embroiderer, a biscornu is a tiny eight-sided embroidered pillow that can be used as a pincushion, an holiday ornament, key chain/cell phone decoration, a scissor fob, the centerpiece of a wreath, filled with flower petals or herbs to make a sachet... They're great for anything that you can think to do with a tiny cushion. Biscornus can be cross-stitched, embroidered, hardangered (is that even a word?), anything as long as each side is square and the same size.
Dolores has passed on a link for biscornu patterns here. They are in French but you could use the google translator if you need to. Thanks Dolores.