This is the one I got, in dark gray.

I got a few soap kits from Brambleberry, but wanted to protect the area I was planning on making the soap on. Saw some on Amazon, but I had the kits at home and I wanted something faster, so I went to the local pet stores to see if any of them had any. "Hey, do you have any mats to protect the floor for when a dog is eating?" "Oh, what size dog?" "Well, actually not a dog.... I want to make soap, and I want to protect my desk." They all said that they didn't think they had one big enough for what I wanted, but they showed me what they had, and they were all really small.

So I got the one I liked most off Amazon, and it's worked perfectly.

I got a nice new standing desk that my landlord helped me build, and after I showed off my first batch of soap to him (he lives next door, he was coming in to check on something one of my housemates needed right after I cut my first loaf), he says "Are you sure you don't want a nice piece of wood or something to protect this really nice work surface?" So I showed him the silicon mat and he says "Huh, I guess you got it all covered."