Weapons for 0-waste robot

The original robot showed itself with a katana but didn't actually see it come with any weapons in the files initially. so rather than using something from a HG Gundam kit, I decided to take the hard route and make some myself.

Lmk in comments or messages if there's any issues with the models (handles are too big, design flaws, etc.) and I will fix them when I can. I am very new to this.

Planned weapons:
Chainsword (done, needs adjustments)
Greatsword (need to model)
Axe (need to model)