A 2m coax vertical dipole would work. Strip the outer insulation off of about 19.5". DO NOT cut the braid. Fold the braid back down over the remaining coax. You can leave or uncover the center conductor .... don't really matter. Adjust the lengths for frequency and swr. Attach a solder lug or loop of some sort to hang it up. Congrats! you just built a vertical bazooka.