On another TPF thread there is discussion about customizing and embellishing vintage
coach bags. Apparently some stores will embellish a vintage bag but I don't know what they charge.
I don't usually care much for the modern bags that are heavily encrusted with embellishment or decorated with with dark symbols like skulls - no criticism but just not my taste - but I do own 2 recent bags that came with some minimal tea rose embellishment and I like them.
I prefer my classic, vintage coach bags plain and simple as they were originally made, but occasionally you come across a gorgeous bag at a great price that has some nasty damage that you won't be able to fix, like a dark, leaky pen ink spot. It occurs to me that embellishment might be a good option in such cases, depending on the location of the damage, to hide the damage and save the bag.
The link below discusses options for creating and embellishing bags on Coach.com.
https://www.coach.com/shop/create