I've made him with a swappable head. There are three. One is not pictured yet.
The Cube head one is printed/ scaled for 28mm play, though he stands at just over 45mm. The one with the horned head shown I printed big for painting, he is about 70mm.
Rescaled files are attached below. No I don't have them in a single folder to download. (just to head of the usual question) :)