I got tired of the tiny tank the UD Goblin has, so I decided to make my own. here you will see the tank i have designed for the UD Goblin Mini. it holds alot more juice and works great. I recommend the clear acrylic so you can actually see how much juice you have. thank for looks and vape on! I decided to open it up to Strong & Flexible Plastic Material due to pricing. only issue is that since it's not water tight I suggest using a food safe resin to make it safe to use. well I would also do it with the acrylic one also.