Here is a Birds Cushion (envelope style) for my spare bedroom. It makes a nice change to make something for my home rather than to wear. I have used a green floral cotton fabric for the cushion and made two bird appliques which were hand sewn using a slip stitch. The bird template is taken from the book Sew! by Cath Kidston (other templates include a heart, flower, dog, aeroplane, elephant and hexagon) and the birds are made using a multi tartan wool. I am a Cath Kidston fan and love her designs especially her bags.
I would recommend a really lovely book Making Cushion Covers by Debbie Shore which I own. This book contains many beautiful cushion cover styles (envelope, zip, corded, patchwork, box pleat, pleated edge and more). Debbie is the Queen of Craft and has many Youtube tutorials.
I find that sewing craft projects is relaxing especially hand sewing. I hope this will inspire you to create and craft!