once they made the tank that can come apart why does the pyrex section have to be shaped like a tube? as long as the ends were the right size a creative glass blower could come up with different shapes and sizes just like they do for drip tips- I would want a hand with the "one finger salute" just like the drip tip- then when the antz go on about vaping you could slap your middle finger drip tip on your large middle finger tank! give 'em a double silent but clear response. of course, the man or woman tank that undresses as the juice goes down(I used to have a pen like that) would be very popular. as a matter of fact, why don't we come up with ideas for shapes and pitch then to some enterprising vape shops? I would definitely be interested, anybody else?