In order to homogenize a suspension it must be shaken vigorously. This holder will allow for the microtube to be attached to a reciprocating saw. I used a Recipro Tool Quick Change Attachment:
http://www.amazon.com/gp/product/B002YDM9VY/
and a Capri Tools CP10111 Drill Chuck:
http://www.amazon.com/Capri-Tools-CP10111-Keyless-Drill/dp/B00V3X385M/
You can see how I went about it in this paper:
http://www.jbmethods.org/jbm/article/view/72