Mini RC helicopter mods?

I know you can't do much with mini RC helicopters because of their size and power but I'd like to try. Thinking a paint job and/or removing most of the shell to make it lighter. Anything else I could do?

Here's a link and a pic:

http://www.minihelicopter.net/picco-z.htm
http://www.minihelicopter.net/silverlit-helicopter.jpg

yea, there isnt much besides making a new cover for it, making new landing skids, or putting a new design on it..