The Top Ten things that Mumm-Ra does in his sarcophogus. 

Special Mentions: 

He does Mumm-Rana. 

        So here it is: The Top Ten! 

10. The Sarcaphagus is sound proof. He screams profanity at the top of his lungs for days until he's worked off the the frustration from his latest foiled plot 
(JackalMann) 
9.He prays over and over to the ancient spirits of evil for a better look so he has a  chance of being on the cover of CosmoMummy (PumMyra) 
8. He looks at his collection of "magazines" (LIL SPAWN2) 
7. I personally believe that Mumm-ra is secretly having sexual fantasies with Cheetara and Pumyra while "resting" in his sarcophagus (joly) 
6. See's how far he can flick the boogers from his crusty nose (Roberbill) 
5. Rebandages his little mumm-ra (Vic Rattlehead) 
4. Categorizes his collection of mini-skirts (Alluro) 
3. Spanks Ma-Mutt when he's bad (Roberbill) 
2. Talks dirty to the Ancient Spirits of Evil (Wileykitt) 
1. Gets hard at his own vague reflection on the inside of the stone cover. (rcaplan)