I dated a vet and I used to guilt trip him into pushing these. The company that sold them to him had all these different displays that you could have for free to put up in the office. I put a HUGE one in the waiting room on the floor, right by the desk, and then a smaller table top one, and a wall poster in every single exam room.
I tried to get him to just refuse to declaw, but he said he couldn't. The only ones he had were clear, though. He had some people who used them and liked them, but most of his clients had their own trimmers and just kept them cut really short.