This is a really simple way to make some great cushions for your house.
I simply cut 2 squares of fabric half an inch smaller than the cushion size you want to use (this gives the cushion that nice firm and plump look). Sew around all 4 sides - leaving a gap of about 1/2 the 4th side open. This will give you the space to insert the cushion insert. Then either hand sew or machine sew the seam shut. Finally add a simple fabric covered button to the centre of either side in a contrasting colour.