So do your toy characters just always stay the same shape or can they gain/lose muscle and fat in some weird way? The food they eat just disappear though, right?
They can, though it's all "method acting"; eating food, working out (or even not actively working out) can technically change their appearance, though it's mostly through a kind of self-belief. Experiences of all kinds nourish and keep the minds and bodies of merch mimics stable, and if they aren't actively going insane, they can exist indefinitely. Therefore, if they keep doing something they feel validated by, it affirms them and the shape they take.
If they don't eat food or do some activity that mentally grounds them, they may start to get kind of weird (doing repetitive behaviors like speaking in catchphrases more often and forgetting things), change shape to reflect their lifestyle (growing a beard because you think you're supposed to shave despite being a garden gnome), or gradually become more and more lifeless and inanimate until they just kind of. Freeze. It depends, though. Some like statues remain motionless for decades but are perfectly capable of moving if prompted. and Victor can eat a lot of food to virtually no effect on his body. lucky bastard













