Rollen Joynts

I think that this thing would make a PERFECT bong, I just cant figure out how I would do it.

Should I make one of those bowls that you pull out, or a carb somewhere in the neck?
How should I drill it while still making it look good?
What should I use as a bowl?

I need this to work well, and look good. All of my friends have made shitty bongs out of things like : A see-through cup that looks like an alien, the bong is sealed with shoe-goo and bubblegum, and a mouthwash can, the bong was sealed with scotch-tape and drywall putty.
I would really like to not waste this, as you dont come by a piece of glass like this very often.
I'm sick of smoking joints, and im sick of smoking with shitty bongs.
Please help me out here.