I see a lot of debate about the prototypes design when it comes to the lore whether its the spider legs, the toy design, the jester appearance so im going to give my take on it ( btw the fanart / renders are not mine Im just using them as a base )
Theodore bed:
This one I've seen floating around alot people debating of the prototype was smaller at that time or if he could some how disarm himself and it can still function like mr potato head but i think since the prototype was extremely intelligent to the point scientist had to make sure they kept their eyes on him and that the prototype knew the layout of the facility better that anyone he could have made a secret peep hole to spy on Theodore under his bed while being undetected by the scientist. I dont see any evidence of the prototype pulling a mr potato head in any information I've heard or read and the smaller form one doesn't really make that much sense either since the prototype was finished by Eliot before he got to work on poppy and the scientist didn't know how to perfectly recreate Eliots work. And we can clearly see its the same prototype because Theodore drawing shows his needle hands
Why is he a jester and was he always a jester?:
Eliot could have not intended the prototype to be a jester . After all he is a prototype which is why he has certain design choices that wouldn't be picked for the final product like spider legs and needle hands he was just throwing stuff together to see if it would work . Once he finished with poppy however he could have put the jester like outfit on Ollie to show he was the laughing stalk. The joke. The fool that got tricked into this trap. After all what is a king like Eliot without a jester. But he probably also put it on him to make poppy not scared of him ( because if I saw that thing and it is going to be my brother id be scared shitless too ). Just look at the art of the jester I have displayed it looks exactly like the prototype down to the gummy smile and the covered right eye
Where does the toy design fit into this?:
The toy design the mob gave us imo has 2 explanations
1 Eliot saw the design of the prototypes outfit and probably wanted to make it into a toy to sell ( Similar to mommy long legs and that the experiment was first then the toy) but it probably never saw the light of day since Eliot died
2 mob purposefully posted the art to confuse the community even more about the prototypes lore , is nothing but a what if drawing, and we are looking WAY to deep into this