I have used a surface crochet technique in my Toby Turtle floor cushion pattern.
In this instance I made a circular piece of crochet working using an plain aran yarn. Each double crochet stitch is worked into the back loop of stitch on the previous row. This leaves a loop on the surface of the base crochet which makes it easier to attach the pom-pom yarn on top.
To start with I pulled one pom-pom through the circle in the middle of the spiral.
I always worked in every alternate stitch (missing a stitch). I worked in a continuous spiral.
When I finished cover the base of the work with the pom-pom yarn I tied the base yarn and the end of the pom-pom yarn together.