Green ribbons tied to your camera bag, stroller, belt loop.
Some people get the Mickey heads from the paint samples at Home Depot (I think) and put them on things.
You could also personalize a shirt or hat.
I am sure there are more ways, those are just a few I could think of that I have read here before.
I have meant a few DIS-ers over the last few years, all of them great folks.
Smiles,
Diane =0)