the other day I broke the glass on my subtank mini so, I made an aluminum ring and threaded it onto where the tank goes then I put an o ring in it and slid the barrel and topcap of my Vulcan rda onto it essentially turning it into a dripper but it uses the airflow from the subtank and the Vulcan. I shortened the barrel of the Vulcan as well and have a poorly done Clapton coil in there. The vapor production is awesome and flavor is awesome too I just wanted to show it off and was wondering if anyone has done something similar.