We've never traveled with Blue (I know, I'm sorry Blue) but we always wanted to. I've always thought that it would be nice to go up in the snow with him, let him run around in the beautiful white powder, eyes smiling, mouth drooling...but I'm digressing.
If you want to travel with your pet, but the bowl is too heavy - get these Origami Bowls! They're easy to assemble on the run, and make a good bowl. It can even be reused several times! Find it at UnicaHome.