1) The Glamourai used one of those like $3 throw rugs to make a super chic long lumbar pillow. She just folded and whip-stitched up the side!
2) I love this stair runner DIY over at Loft and Cottage. Perfection with the nail head! And it's hard to go wrong with the neutral pattern in the Hessum rugs. If you want something more colorful (Dash and Albert style) this runner is so great-looking in person.
Two other tried and true IKEA rugs for me have been the black and white striped flat weave and the Tarnby jute (only wish it were larger and a little softer!)
What are your favorites? And have you ever used an IKEA rug to make something extra special?