Roll It Up 1.03

the author of this app says:

Uses multi-touch, the accelerometer, and the microphone, to create a realistic rolling and smoking simulation on your mobile device. Features realistic 3D rendered imagery and photographic imagery.

Don't want to roll your own? Just select the smoke option from the front screen.

What's New in version 1.03

Personal best times scoreboard
Game Center leaderboards
All new "slide to smoke" controls
Configurable options
Smoke it way down
Playing tips
Audio queues for completion
Various bug fixes

Requirements

Requires iOS 4.2 or later.