I got my dogs leather collar from the coach store. I don't know if you know what that is. It's just this store that sells leather collars,dog leashes,sunglasses. Stuff like that. Theres a few coach stores around heres the website.
Smaller one in leather if I had to choose. Instead of coach, get your dad leather prada wallet or a fendi leather wallet. Coach quality is crap. And signature wallets are tacky for men.
You can fix most surface scratching with a product called Easy Colour from LTT. Deeper scratches need to have the correct colour mixed for them and this cannot be done by DIY repair kits from the internet as colour mixing is very difficult.