How to make a mold
First, quickly mix the two parts of silicone together. Work quickly, it has a 3-minute working time.
Roll and flatten mixed silicone. Flatten based on the depth of the impression you'll need.
Choose an object to create an impression. I chose a snowflake ornament.
Quickly press the object into the silicone putty until you're happy with the placement. Allow to cure
There is a 3-minute working time and the silicone will be set within 4-25 minutes.
Remove your object after curing. If you're impatient and want to use it right away, you can heat cure in the oven at 350 degrees for 30 minutes