I decided to get a bit more adventurous with my canvass and went with slate. What I found most interesting working with slate is that you have to invert the image. It’s almost like you are working with a negative, but when it comes out on the black slate, it truly turns out amazing! What do you think internet? Do you think a custom slate coaster is worth $19 a piece? 4 for $35??? That includes the time for image editing. Bulk orders get a discount!