how to make own decals?

Hello to all model-masters :lol:
newbie have a question about making decals...
what are the materials i need in order to make own decals?

please, can anyone contact me if they can make one for me?
i need it to work on a project...
thanks thanks

newbie

The Testors 'Decal maker' kit is a good place to start. I've had good results using it with my ink jet printer, though the included software is not very useful.