How many BIONICLE store display tubes were created? I'm an avid BIONICLE collector and am curious as to how many unique store display tubes were created during the lines original run. To add some known information to my question I know there was a Tahu Nuva display tube very early on but then there seems to be a gap. I hear there may have bee a Rahkshi display but have never seen it if anyone can confirm this? From 2005 every line had a tube produced including TWO for the Piraka for some reason. But I'm curious about the missing years. Toa Mata, Bohrok, Bohrok Kal, Rahkshi, Toa Metru, Vahki, do any of these have store displays? Or is it something that only started in 2005 and Tahu Nuva was an exception (as photographic proof exists of this one!) 

Anyone with any knowledge on this it would help to fill a gap in the line's history! Also, where are the new 2016+ store displays? I've seen a single Tahu tube and a Tahu display case but nothing outside of that (except I believe a case of skull villains?) Are there any more being produced? 

Here's a link to better explain what I'm talking about : http://www.bzpower.com/board/topic/18801-retail-items-topic/
As it turns out, a Rahkshi store display tube does exist and was recently re-discovered.

The following display tubes are known to exist.

G1

2002 Rahkshi Panrahk



2003 Tahu Nuva



2005 Hordika Vakama



2005 Visorak Keelerak



2006 Inika Jaller



2006 Piraka Hakann



2006 Piraka Vezok



2007 Barraki Kalmah



2007 Mahri Nuparu



2008 Mistaka Lewa



2008 Mistaka Lewa and Tanma



2008 Mistaka Tahu



2009 Glatorian Gresh



2009 Glatorian Mata Nui



2009 Stars Tahu



G2

2015 Tahu



Others

2001 Onua Sculpture

(Technically a display tube, but a brick sculpture rather than the set.)