Hmm, I wasn’t aware of that type of product, and hadn’t heard of anyone having a problem like yours.
For the price, you could always buy one of the sets on offer & try adapting a couple of stickers to fit your buttons. I would think it would just be a case of cutting them to fit if they were a bit too big. I have not seen any similar sets for Peugeot cars, but then I haven’t looked for them either.
Good luck with your search, or if you make your own/adapt another manufacturer set, it would be interesting to see your finished outcome.