I'm going to make a mug of beer for a birthday cake and was wanting to add a can of beer pouring from above.  Wondering the best way to go about making the stream of beer from isomalt?

http://cakecentral.com/g/i/1196552/got-inspired-by-siris-to-try-this-one-cherry-chip-cake-and-wbh-bc-dowel-is-holding-the-beer-can-up-satin-ice-covered-fondant-banner-i-love-how-it-turned-out-although-it-could-have-looked-more-realistic-with-blown-sugar-i-only-know-bc-thanks/

If you scroll down she tells how she did it. 

"Yes, the beer can is real. I used a wood dowel, cut a notch in it so the lip of the can would stick in it, just to hold it better. Then all I did was stick it in the cake and frost it;-)" Wendoger

I melted sugar and poured it gradually along the dowel. once hardened, i pushed it into the beer can

You could also try pouring melted isomalt onto the dowel? Maybe clear isomalt and add a little orangey yellow colour to it to make it look like beer?