by @Bai-jiu

if anyone doesnt remember or hast read about it (i had like major info dump about in Toyhouse but 90% of it hast survived) they can do objects with the light halos
(theres like a skill tree and stuff, i was lowkey insane with that universe)

also it is never specified in the text or the few comic pages how they asemble objects, due to description it might seem its automatic or teleniquesis like, or smth but lets think for the funies that they just slap them together like they are using glue