Give your own shop a name, and use that on any bike that needs decals and you want to show off.
Here in Holland it was common practice for bike shops to want their own house brand. They'd buy frames elsewhere and put their own decals on them.
One of the most famous shops, Bontekoe in The Hague, did that with all sorts of frames for decades. I own a few:
Late forties / early fifties Locomotief - Bontekoe:
Sixties Gazelle - Bontekoe:
Seventies Viner - Bontekoe:
Seventies Alan - Bontekoe:
Early eighties Miki - Bontekoe:
Late eighties / early nineties Stronglight Altec - Bontekoe: