Giant Balloon

I am currently the proud owner of a huge balloon. It's larger than my microwave and I have no idea what to do with it. At the moment, it's tied to my phone. It has enough helium to hold my phone up on its side, but not to lift it into the air, which disappoints me. It's a glaring emerald green because I took it from the Wizard of Oz set after the last show. It was difficult to take home, because it block my rear view mirror until I shoved it down into a seat. It's pretty useless. Mostly I just enjoy the novelty of having a balloon that's larger than a small child.