Quoted from loppydog:Thanks spaceport I think that may be my best bet at this point. I wonder if the painted white part can be a little larger and the black will cover it nicely? I would think that when the insert shines from underneath it may be noticeable though.
BTW, my decal paper is for laser printers.
So a few things. First off, laser decals are the way to go, that's good. Inkjet ink is generally pretty prone to fading. There are some archival inks, but they often need a special paper to sit right, not sure how they'd work with water slides.
Secondly, you're right, you're probably going to see the white/black transition when it lights up if you bleed the white into the black. What would be much better would be to bring the white all the way to the outside edge of the black. Then you won't get that effect, and your black will stay opaque, so it's win win.
Here's what I would do:
Luckily you're dealing with a simple shape that's all straight lines. If you want to do it right then stop by your local art supply store or possibly hobby store, call first, and pick up some frisket. Or order it online. Frisket is masking film, it's tacky and will stay down, but won't leave a residue behind.
Lay out some frisket over the insert, and then mask off the rest of the playfield with some masking tape and newspaper or something to be safe. Then print out the N on plain paper and cut out the circle, get it lined up over the frisket so it's in the right spot (the frisket is clear, you'll be able to see). Tape it lightly in place. Then you can use an Xacto and a straightedge to cut the N shape through the paper, use enough pressure to go through the frisket without pressing hard.
Pull up your laser printed N and the piece of frisket you cut out and you'll have the whole interior N shape. Ideally you'll airbrush it white with Createx acrylic white, after it dries hit it with a hair dryer. Then you're ready to waterslide your decal over it, get it lined up right and you should be set.
You'll need to do something to protect the decal, normally you'd clear coat over it, but I imagine a circle of mylar would work.