We investigate Fraïssé limits of families of finite rooted trees with epimorphisms built by performing elementary operations on rooted trees such as splitting an edge, adding an edge, or doubling a component above a vertex. As topological realizations we obtain dendroids which are not embeddable in the plane, and every point is either an endpoint or a ramification point. One of the examples is the Mohler-Nikiel universal smooth dendroid, and another one is a continuum, which as far as we know, has not yet been studied in the literature. This is joint work with Charatonik, Roe, and Yang.