Another day, another Elf returns to The Lego Car Blog office clutching its find. One meal token and a yellow Smartie later and we can bring you this incredible working Liebherr A928 excavator by Flickr’s Tobias. It’s fully Power Functions controlled and features probably the most complicated pneumatics system we’ve ever seen. Check it out at Tobias’ Flickr page via the link above, and to read TLCB’s reviews of LEGO’s own excavator sets, click the ‘Reviews’ tab in the main menu.