I was wondering if anyone had advice for a source for a material with adhesive backing, similar to the proofgrade veneer? Have had EXCELLENT results with that btw, but have had a hard time getting the veneer to adhere around the curvatures of jars etc.
Get it wet. Bend around the jar, held tight with rubber bands, Let it dry. When dry it should hold the shape of the jar. If the jar is not smooth (like mason jars etc) you might need something more space filling.