Advice on how to build first pneumatic prop

[RiseFromTheGrave]

I want to build my own version of Trash Can Trauma from the Halloween edition of Make magazine http://makezine.com/halloween2007/trashcan/
I got some props and the trash can and was wondering the best way to power it but if pneumatics are the best way then I can buy an air compressor from Harbor Frieght tools for $100 any advice anyone can offer? Many thanks in advance.

[campdoc]

The best place to buy.Start up kits.(Pneumatics)
would be Frightprops.com ..Good people.