I used a dinner plate for my large circles with a water colour pencil. I went around with a very wet paintbrush after and let it bleed and run.
This was a virtual rollercoaster in Disney Quest.
You get to build your own coaster and then ride it. It seemed like a funny idea when we had 10 inversions only to find out when we got on that it did actually go upside down.
We didn't believe the guy there when he said it went upside down.
We rode in pairs whilst the other pair watched on a screen outside the booth. It was so funny and a moment we still laugh about now. We all had another go it was so much fun.