Came across one of these but no stock or too expensive, so I knocked one up on Tinkercad to share
T12 Tip Holder: http://bit.ly/2DGKHEr
This is primarily for my Hakko FX-951/Clones T12 tips but is universal with 16 holes at 6mm~ diameter and countersunk rims.
It accepts some other tools like hex wrenchs ,Allen keys ,Screwdrivers ,Needle Files and Pointed Tweezers etc
FX-951 Solder station: http://bit.ly/2xcCFRn
Printed on my Geeetech I3 Pro: http://bit.ly/2rUHFef
Hope you like it,have a nice day!
A little filing in the holes to makes sure no strings or boogers etc.