Design Concept:

I was browsing through models and came across some dragon heads posted by @NotJustLayers (set 1) and thought they would make for some interseting bookends. So, I designed a bookend model that allows for different "features", a.k.a. the dragon heads, to be mounted to them with pegs (glued in place if desired). This allows for the bookend base to be semi-modular to be used with other models besides these initial two, or for these models to be used with potentially different style bases in the future.

Updated: A second pair of dragon head features has been added. These are ones I generated through Meshy. I was shooting for some dragons with more expressive facial expressions..

There are STL files for normal and XL sized versions of all four dragon busts as well as the matching sized bases and pegs. The 3MF files contain all the models for a pair of bookends, one 3MF file for pair 1 and one file for pair 2. Although you can certainly mix and match as desired. The pegs and bases are the same for any of the models of the same size.
The file set contains a 'normal' sized set as well as an extra large scaled set.

The prints pictured for the initial set were printed with matte black PLA for the base, then a couple different options of Marble PLA filament: Brick Red, Shadow Storm, and Forest Green. I like the look of the Marble PLA, but dual or triple color Silk PLA might look nice as well.

The prints picture for the second set were printed with matte marbel PLA, then wood PLA for the bases.

I did go a bit heavy on the infill on the first pair as I wanted them to have a decent amount of weight to them, adjust to your preference.

Dragon Bookend Pairs

0.2mm layer, 3 walls, 12% infill

Dragon Bookend Set XL - PLA

Dragon Bookend Set - PLA