Mouse Marshmallow fondant

Made this mouse fondant as decorative for a birthday cake that i am going to bake later for my bro's bday.

the recipe as below:

Ingredients:

200g white mini-marshmallows
1 to 2 tablespoons water
200g pounds icing sugar
Some shortening

1. Melt marshmallows and 1 tablespoons of water in a microwave or double boiler: Put the bowl in the microwave for 30 seconds, open microwave and stir, back in microwave for 30 seconds more, open microwave and stir again, and continue doing this until melted. (or use double boil and keep stirring until melted)
2. Place 3/4 of the powdered sugar on the top of the melted marshmallow mix.
3. Grease your hands GENEROUSLY with shortening- palms, backs and in between fingers (i use disposable plastic gloves, which reduce it from sticking).
4. Then heavily grease the counter with shortening and dump the bowl of marshmallow/sugar mixture in the middle.
5. Start kneading like you would bread dough. Keep kneading, this stuff is sticky at this stage! Add the rest of the powdered sugar and knead some more.
6. Re-grease your hands and counter when the fondant is sticking. If the mix is tearing easily, it is too dry, so add water (a little at a time then knead it in).
7. You should have a stretchable texture.
8. Its best if you can let it sit, double wrapped, overnight (but you can use it right away if there are no tiny bits of dry powdered sugar). If you do see them, you will need to knead and maybe add a few more drops of water.
9. Prepare the fondant for storing by coating it with a good layer of shortening, wrap in a plastic- type wrap product and then put it in a re-sealable or Ziploc bag. Squeeze out as much air as possible.