Personally I would find it kind of sad to have LBT characters hold weapons.
Why would you find that sad? :blink: All it is to me is expressing that the person has a love for both Land Before Time and japanese swords, and wanted to show them both mixed together. Do you find it sad that the yoshi in my avatar is holding a weapon? (Hard to tell since it's pretty shrunken down, but he is.)
In fact, if I were to actually get a tattoo showing my love for Land Before Time (or any kind of unconventional show), I probably would get one of the characters holding some kind of weapon. Think of it as almost a safeguard. As much as I do like the Land Before Time, I am not going to outright blantantly show the world that I like it with a tattoo of it. The added weapon would be something very conventional that would, in a way, counterbalance what the tattoo really represents which could be seen as very unconventional. Of course it's also, like you said, a matter of taste. I happen to find the idea of mixing weapons with innocent, harmless cartoon characters very cool and interesting

(It is one reason I am such a huge fan of Kingdom Hearts.) Still, I can't see why you would think that it is sad to see LBT characters holding weapons.