Don
What I am interested in is how are disguising the seams??? In the ones you shown what part is the decal??? Does the decal go all the way around the tube??? Did you paint the tubes on those??? Thanks.
I think the black is simple enough, but it might be a bit more difficult with other colors.
When you wrap the tube and leave overlap, the black wraps onto the black.
Notice how his label has blank black space at the top and bottom. You don't
want your graphics to be edge to edge, because you need that empty
space for the overlap. That allows the label to adhere to the label as well
as to the tube.
The edge of the paper label is white, and that shows up against the black.
So touching up with a Sharpie marker hides that seam.
You can do the same with other colors, provided your Sharpie is a close
enough color match.
Hint: Don't use a sharpie if you're going to put anything over the label
such as CA, lacquer, fixative etc. It makes the Sharpie color leech out and
it doesn't stay it's original color. DAMHIKT.