It'd be cool if there was a pirate eye-patch/parrot sort of outfit. Then we could have pirate vs. ninja glitches! Especially for Sept 19th. Official Glitch (speak) like a pirate day.
Also, come Zilloween, it'd be neat if the characters in Ur got into costuming. What if the Hell Bartender dressed up in Angel wings? The Rube dressed up as Uncle Friendly? The frog dressed up in a sloth mask? etc, etc...