I have a large collection of articulated action figures, and I customize many to fill in holes of the collection or to "correct" figures that I think the toy companie didn't make well. Back in 2009 my superhero action figure collecting and customizing intersected with my smaller dinosaur figure collecting. Marvel comics has a couple of characters named Shanna and Kazar, who are modern people living in a hidden prehistoric land. They have a pet sabre tooth tiger named Zabu. The toy company which made the figures for Shanna and Kazar did a terrible job with Zabu, so I had to customize him for my collection. And then I had to customize a foe worthy of Zabu so I made a large, scythe toe dinosaur.
Being based on comic books these creatures are of course wildly inaccurate. The other thing about these customs is that they had to have a high amount of articulation and playability, so correct anatomy further goes out the window in order for the joints to have room to go through their range.
First some WIP shots with the various elements used to customize Zabu the sabre tooth tiger. The labels are parts from other action figures that I used:
Joints cobbled together for the shoulder and hips to give rotational and lateral movement:
A tail joint made from the shoulder joint of another figure, which gives movement in all directions:
A joint from a Bionicle toy put into the head and neck to allow head movement:
The full figure at rough assembly. Here all the joints cobbled from other toys are in place. The next step is to remove bits of plastic that doesn't look like a saber tooth tiger:
Same figure dremeled to rough shape:
Further progress with more shape and fur textures burned into plastic with a soldering iron or sculpted in using Aves Apoxie Sculpt:
Zabu finished in various poses:
And here he's posed with his buddies Kazar and Shanna, which are factory figures.