Hi Again,
sorry for late reply, I was busy, guess with what

So now I will try to answer.
Airbrush paint are quite durable as I made lot of attempts and now I know what king of paint works well with leather. Also I'm painting them with primer now and I'm happy with the result. And third thing is what I made with Peugeot (Turbo) and Supercorsa. The logo/text first is stamped so is like layer lower and that secure the paint even more.
Trillebar, at the moment I'm doing it as the hobby but i have more and more of them and I'm wondering where it will take me:) So at the moment I'm using saddles to gain more and more Norwegian friends as some of you already asked me to restore some old saddle and I'm doing it with pleasure. I met nice people because of those saddles and other leather/bicycle works so far.
If some of you have idea what kind of saddles and which way I can do I'm open for suggestion. Some of you advice me to make saddle based on Chesterfield Sofa or Rugby Ball. Will do it hopefully one day.
Thanks for all your suggestions.
P.S.
This lizard look leather seems to have many fans. I still have some of these leather left

And here are some new saddles transformation:
Selle Italia, covered with 0.6mm white upholstery leather with red thread square stitching (my Singer was tired after all of this lines:) )




And another finish of Selle Royal with Kangaroo Logo and Baseball Stitching (this is for Maruishi bike which I'm restoring now):

