你们俩的照相机样子一样。

Hi there, you mean 看样子 or just 样子? Because when it is 看样子，then it makes sense that we put it in this way: 看样子你们俩的照相机一样， which means: it looks like that your cameras are the same. 看样子 means ''it looks like, it seems like''; But when it is just 样子，I see no where to put it into the sentence. If you insist to use 样子，then we should go with ''你们俩的照相机的样子一样”, which means: your cameras' outlook is the same. 样子 means the appearance (outlook) of something.