Deep Sempahore is gradually improving his MURKU Hud, the awesome inworld device that you can use for creating comics strips and cartoons directly in Second Life.
Here, you can read how to grab the HUD.
You may also consider to take part in the SL Comics Contest.
I suggest you to join the Murku Comics group to stay updated with the new releases
Below you can watch a demostration of the Hud potential