Anxious to use my templates yesterday, I proceeded. I used my green foam template to cut out the plate outline. I could have gone directly to the pattern and cut out the plate and impress design at the same time, but I had the outline template so used it. The above video shows my application of the "negative" foam design creating raised image.
Then I decided the exercise ball would be perfect to shape plate before I put the foot on:
if nothing else, I proceeded to use the foot I cut and the template with the hole in it to adhere the foot. Well, I have it set up now and it isn't perfect, but if I think to set that exercise ball in something that will keep it from rolling, I think the whole thing will work.