I had a go at making some beads using some transluscent fimo and some extruded clay and then tried using this method to glaze the beads.
I have to say I had no luck with this method despite several attempts.
I then purchased some varnish but found that the beads went tacky.
There is a full article on finishing your beads here:
I have to say that transluscent fimo is not translucent, more a opaque white.