My sub is a masochist and really likes pain. What toys should I get?

So far I have been spanking her with just a wooden spatula. It gets the job done but it’s not sexy. I’ve tried to buy stuff online but the paddles and restraints are often low quality and are just for show rather than actual fun. I want to keep her interested. She’s expressed to me that she enjoys pain a lot. She likes when I smack her but she is small and I have a large hand which makes it difficult to do safely

Is there a site or some products and links that you can recommend? Thank you :)