Grind the oats. (You can do this with a rolling pin, in the food processor, or whatever your preferred method is.)
Melt the soap in the microwave for 30 seconds. Stir. If it is not completely melted, put it back on for 10 second increments, until fully melted.
Add the honey and rolled oats to the soap base. Mix well.
Pour into the silicone mold and let set overnight.
Carefully remove from the silicone mold and you can then use the soap right away!