I am just wondering if there is any way that anybody can make decals for the tankers if you accidentally remove them.
Well, you CAN print your own decals (most custom decal companies have a minimum of 100-200 sheets, so the best way to get by on the cheap is to print them yourself).
Maybe this will help:
https://www.google.com/?gws_rd=ssl#q=print+your+own+decals (https://www.google.com/?gws_rd=ssl#q=print+your+own+decals)