Waterslide decals....soak until decal slides on paper, wet surface you're applying to. slide it off, position and pat dry. Do not over work these, they'll tear. They look much nicer than vinyl, but far less durable without a protective clear coat.
I'd have to disagree with this comment? water release leaves that film around the lettering and to me , just looks cheesy.
the only decals I would use would be the Coin return and bottle opener that are appropriate for this machine as well as the "Do not deposit coin if bottles are not visible" decal.. these where original (screened) on the machine and help complete the look of the coin door in my opinion..
normally not a big fan of pinstriping, but yours is tastefully done.. Nice detail to the compressor area as well!