Disclosed are devices, kits and methods for forming a marker element including, in aspects, a tube having a longitudinal direction, a base element received in a first end of the tube, a wire receiving portion at a second end of the tube, a force applicator receivable within the second end of the tube, the force applicator being configured to apply force to a received wire in the longitudinal direction of the tube to deformably compress the received wire to a selected length relative to the longitudinal direction of the tube. Also disclosed is a marker delivery device having a tube, a marker element preformed within the tube, and an actuator element receivable in the tube to move the marker element from the tube into a tissue site.