Functional Minimalist Onigiri Maker

You Just can't find a better design then this for the maximal amount of functionality from the minimal amount of dishes.
*Seriously, people, work harder. This is not the best design possible.*

Instructions:
1. Print both parts. (Print the plate twice for fancy edges).
2. Clean and smooth defects in inner parts for avoiding redundant adhesion of the rice to the mold.
3. Spray parts with water (If lacking spray, dunk in water bowl).
4. Smash in some sticky rice and make room for the filli