I covered pipes on the bottom half of
this page of my WWV
V2. In addition to the
three models tinstar mentioned, there also are the
RUYAN rose wood e-pipe from Heaven Gifts and the RoyalSmokers’
RS888 Mini Pipe from SmokeJuice.co.uk.
The KR608A mini-pipe and DSE601 pipe are the least expensive, but you read what tinstar had to say about them.
The KR mini-pipe (at least the
KR608A) uses a 250 mAh 14250 battery (as does the RS888), so I think the battery life would be
less than the penstyle's 2
80 mAh.
SUGGESTION: Granted that a pipe has a unique shape, but, if you are open to a PV that is larger than an analog cigarette, I urge you to give strong consideration to a
Fat Batt (as I call them), e.g., eGO ... or
mod. More bang for the buck. [And, conceptually, e-pipes (and e-cigars)
are mods, i.e., battery
housings, rather than batteries.]