The invention relates to a shaping tool for shaping a smooth bone cement surface, in particular for implantation of an artificial acetabulum, comprising a curvature, whereby the shaping tool has a curved base body and at least two layers, whereby a first layer covers the curvature of the base body at least in part and is connected to the base body in a detachable manner, and a second layer covers the first layer at least in part and is connected to the first layer in a detachable manner. The variable shaping tool according to the invention can be used to pre-shape a bone cement for insertion of an artificial acetabulum.
