Take two lumps of beige fimo clay and roll in to balls.
Roll in to cilinders and then push in the middles, so that they look like stalks.
Take two lumps of red fimo and roll in to balls.
Flatten the lumps around the edges, creating the mushroom top shape.
Place the tops on the stalks.
Roll little bits of white fimo in to balls, flatten and place on top of the mushrooms, like spots.
Take a sharp knife and cut the mushrooms down the middle, but don't cut all the way through the stalk - slice of a small way in to the stalk.
Bake in the oven until hard.
Pull the mushrooms apart and glue large round magentas on the base of the stalks.
Now take flat square magnets and place one on either side of the mushroom top, so that when placed together they hold.