Well about back in 2003, we got an edition onto our house. We added a game room/guest room. My dad did the whole thing himself, I help off and on ( I was only 10 ). The only thing my dad didn't do is lay the new concrete foundation. A neighbor down the street owned a cement laying business, they were a huge business, they layed cement for a bunch of warehouses, and new malls. So he did it for us for only $2000 because they had leftover mixed cement they had to use fast. SO they layed within the hour we asked them to lay cement for use. They brought over the oxygen and acetylene tanks, and all that good stuff. They did a great job. But 2 months after they layed for us they moved, and they forgot there acetylene and oxygen tanks

. We weren't good friends so we didn't know were they moved. And till this day they haven't came by or called to pick it up. So I decided to sell them, or maybe use them for a cannon

What do you guys think?
Here are a few pics of the tanks.
So wat you guys think I should do with them?
The big green tank is OXYGEN, and the black one is acetylene