Most horses show names often has nothing to do with their 'stable' name. although if you would like to relate it to the name lucky to make it sound more formal maybe translating it into a different language would be effective :) ,
some ideas in English to play with are
lucky star
just my luck
wish me luck
follow my luck
check my luck
here come's lucky
lucky time
not a great answer but hope it helps a bit :)
Jimmy the Horse!
Lucky.
Yes it can be. I know a horse named Apache and the name fits him very well.
A horse shoe often symbolizes luck, good luck, or a lucky charm.
Newey or Newc (pronounced "nuke").
Fine Friendly (your last name)
look out badger here comes badger or you can name him after your fav song Colour Me red badegroonies
The Lone Ranger's horse was named Silver and with good reason. He was all white.
No good with a dead horse.
Any name is good for a horse it can beAliceDakotaHannaFredAny name will work for a horse.
any horse
a black horse