Take the bear template and cut around the template and inside the circle using a pair of scissors. Pin template down on to corkboard square.
With the knife, cut around the outside of the template, trimming around the bear, cut inside the circle following the inside edge of the template as shown below and remove the printout.
Protect the work surface by sliding a sheet of paper under the bear cut out. Put the 7-inch mirror inside the circle. If you find that the fit is too snug, shave off slivers (with your knife) from inside the circle. Try placing the mirror again, shaving off more cork if necessary.
With hot glue, apply a thick line where the mirror and cork meet. After you’ve applied the glue wait for it to set, create a sturdy backing for the mirror. Trace the outside of the template onto a sheet of cardboard and cut out. Before gluing to the mirror, check the backside of the mirror and then attach.
The mirror is lightweight, so a couple of small 3M Command wall hooks are all you need to mount the mirror to the wall.