I also use the thinner rolls of batting as mentioned previously. However, I first lay white bed sheets down so that flooring/carpeting won’t show through the batting. I then lay my track and finish by sprinkling clear glitter over the batting (similar to diamond dust previously noted) taking care to avoid getting it directly on the track. The glitter will give it a ‘frosted’ look of realism. I’ve added a picture from our layout last year to give an idea of how it looks.
