Durable beach towels are a perfect outdoor upholstery solution. Ice drops and pina colada spills can be easily washed away, plus the fabric is cool, absorbent and as colorful as you like.
If you're working with square cushions, you'll want to make sure your patterns run up the sides. Place the towel in place and cut off the excess fabric leaving a one inch seam allowance. Remember that you will be using a (less expensive) solid colored towel on the back of your cushions.
Release the fabric and mark your corner folds with pins or a fabric marker.
Flip the towel over and cut the excess fabric from the corners.
Sew the corners of the fabric. This will make a box out of the bottom. Cut a bottom to size plus seam allowance. Pin the bottom to the sides and sew to three of the four sides of the box seat cushion.
Sew the velcro to the back opening on the last side. This will make removing and washing the cushions much easier.
Extra large beach towels should be long enough to make a back pillow. Sew the beach towel into a large tube so that the seam runs along the back and the design is centered on the front. Sew the towel closed at one end and add Velcro to the other. Stuff the shams with two extra large extra firm pillows.
For the seat cushions, make the Velcro tabs and cover the tabs with fabric.
Regular washing and applying a water-repellent spray will help maintain your cushions.