I have not, and the silence seems to be deafening, the most economical thing for me is 20lb tanks. Maybe you could CAREFULLY drill a hole through and have an outside tank if it does not look too bad?
Otherwise, maybe someone has tried it.
In Primary: Belgium Chimay clones.
In Secondary: Braggot, pale ale, end of the world white.
Conditioning: Mead, Cider, braggot, Belgium Wheat.
On Tap: Clones, Chimay Blue, Red, Porter, malted cider.
Bottles: Far, far, too many to list.