The Ai file of my final version of the toy: (oops .ai type is not supported in the system so here is the google drive link)
Just saying, I ended up with a three-part story using three different mechanics.
Suprisingly even if the engrave works but the service said if I wanted to engrave with larger surface area it will cost so much more. So I ended up just engraved with outlines. A little background actually works very very well in terms of emphasizing the main part of the toy which is the story rather than the mechanics itself. Also I’m very proud with how the character “Doc” looks because I am NO drawer but I ended up with a decent looking comic character. (BTW this character is actually a discarded plan when I was designing my own character so I’m actually suprised I can still find a use for him now)