CustomSteve

CustomSteve is a mod that allows users to substitute the default Minecraft player model with industry-standard models, such as 3D models used by MikuMikuDance (MMD).

CustomBuki
CustomBuki is an addon mod of CustomSteve that provides a fully customizable weapon system with 3D model format and custom sound effect support. The mod is still a work-in-progress, and only a few demonstrations are available, such as a demo made by ici2cc.