Christmas Parade Float Ideas, Theme: "Now and Then"?

Depending on if you have children participating. Have one half of the float with activities children do now and the other half with activities children did then.

An idea for a no person float (or just a couple people) put on big tree in the middle of the float, decorate the front half colonial Christmas (popcorn garland, pine cone ornaments, pieces of clothe for hanging streamers, you get the idea) Some basic furniture, maybe a pot belly stove on the end or a chimney with a hanging pot and old socks hanging. On the other side of the tree decorate modern (tinsel, flashy ornaments, etc) have a couple modern chairs and a fireplace with decorated stockings (maybe even a plastic one with doggie treats in it). If people ride have them dress the time. Don't forget the conflicting stars on top.