Screw and Nut and Washer

thingiverse

My niece had her heart set on a substantial bolt and nut that would make a serious impact when picked up. I obliged by acquiring a large bolt, but unfortunately, it turned out to be disappointingly light in weight. To rectify this situation, I took matters into my own hands by filling the bolt with a pound of black iron oxide, thereby giving it a substantial heft that consistently catches people off guard whenever they pick it up.