Jetjockey USA;
I'm a management pilot with a corporate outfit and we also wear "designer uniforms" The colour of ours is a midnight blue with the usual gold braid. They cost very little more than the usual uniform suppliers offerings, tend to be harder wearing and fit better. Mr Boss gives a very good service.
Another company on the same airport get theirs made in Hong Kong by a tailor their boss uses.
We ensure that all necessarry uniform supplies are in the office ready for a new hire on his first day with the company. He may be spending the next month in a classroom and simulator, but we want him to know he belongs.
On promotion he gets all new gear, and all pilots get a new jacket, two pairs of trousers and seven new shirts a year, to go with the two jackets four pairs of trousers and all the rest that arrives in a big cardboard box the day they start. As for any ceremony, normally completion of line training/command course involve a few beers in the local pub.