Here is a thread I dug up, and it voices my question of "Can I use a vanity address on my Ledger wallet?"
I have some pretty cool vanity addresses, but my Ledger wallet doesn't allow importing private keys. What it does allow is importing wallet seeds in the BIP39/BIP34 24-word format.
So this thread,
https://bitcointalk.org/index.php?topic=158655.0, asks if I can create a wallet seed that will generate my vanity address first time. I know it's theoretically possible, but how can I do it?
P.S. I've also looked into bitcoin payment forwarding, but people who provide these services don't allow you to import your own private key.
