Your Cubbies?? My son would have to differ with you on that.....yesterday he had me order for him Chicago Cubs license plates. As of yesterday there are official State of Illinois license plates - they are blue with the Cubs logo. He got "Mark" as his plate number.
Here is a picture of his car in last summers parade
He has magnetic trim with the Cubs logo, both of his back side windows have 2 or 3 decals, his back window had a big Cubs logo and one of those baseballs that looks like it has cracked the window, the back has got a silver decal and some other magnetic and peel on decals, and of course there is a cubbie antenna topper. the flags were added just for the parade - he doesn't usually have them (although the do appear from time to time). Oh and the windows were rolled down because during the parade the radio was blaring "Go Cubs Go!"

For the record, no, we didn't drop him on his head as a child, he suffers from a severe genetic condition - both sides of the family have the "Cubs fan gene" and when it got to him he had an intense reaction to it.