Call it anal but I've worked on quite a few car restorations since I was 14 and we always replaced the factory information labels to add that finishing touch.
I found a couple of places on the net that produce the marine industry safety labels but one that I actually spoke with will only sell them in a roll of 25 for an ungodly $200. Of course, they could offer no assistance on where I could purchase them as singles.
Any here have any leads? Looking for the one that warns about gas being explosive, check tank annually for damage, one that states to put motor in neutral or turn off before using the boarding ladder.
I'm thinking about contacting Glastron to see if they will send me some. Worth a try.