Here are a couple of short demo loop videos for all the Video-SL users out there. They're quite short but quite cool to play around with and they're free. No audio, but its something you can assign to some of your tracks with no video. Hopefully, we can put a few more out soon, we're working on a few ideas.

Motorway:
scratchlive.net
Paddles:
scratchlive.net
Graf:
scratchlive.net

Have fun :)