MoPhlask

8oz. stainless steel flask, two ounce cup embedded for easy of carrying and enjoying.  
 
The bottom of the cup can be customized one of three ways:

- Matching skin
- Machine engraved on cup
- Hand engraving on a one ounce silver coin (My favorite) 
(If you are going to do this, you might as well DO this!  Cheers)