I present my rather large tritium lantern 5E, designed for use with six 3x50mm or twelve 3x25mm tritium vials (vials not included).
This model has been scaled for printing in stainless steel.
The attachment hole is large enough for paracord, gate clips and the largest of split rings.
The tritium vials should be set using a UV activated optically clear adhesive such as Norland 61 or Loctite glass bond. These adhesives will cure in direct sunlight in an hour or so.
Before gluing, please ensure that the vial fits loosely into the lantern body and that there are no tight spots. Due to potential irregularities in the printing process, some gentle drilling may be required on the tritium vial channel, to ensure an unobstructed fit of the vial, into the lantern.
I have a few tritium lanterns bodies in stock and available from my Etsy shop.
There are some more photos of this object and other examples of my work, both 3D printed and otherwise, on my 'Tofty' facebook page.