Check out: http://anver.com/vacuum-components/vacuum-generators/pumps-jv/

These small plastic parts generate a vacuum at the end of the line, so you can run thinner, more flexible tubing. The same company also sells quite a few different suction cup options: http://anver.com/company/vacuum_cups/

As for rotation, you can run your vacuum through this hollow shaft stepper motor: http://www.robotdigg.com/product/43/Nema8+Hollow+Shaft+Stepper+Motor

Cheers,

-Dave