Simple online 3D drawing/modelling tool?
I'm at school and I need to use a 3D modelling software for my Tech project, however there current one is quite old and has a steep learning curve. As I'm at school I can't download or install or execute any software like Sketchup, and the my teacher has asked for it be installed on the computers, however it hasn't happened sicne I asked a week ago. So the only alternative is for me to find an online tool, in the same way Google Docs is online, this gets me roudn the policy of not running an software on school computers.
Sadly The only browser on the computers is IE8, so it would probably have to be flash based, rather than HTML5 or anything that requires a plugin (other than Flash).
In sum, I'm looking for a cloud-based/online 3D modelling tool.