I have got a flux wire welder and this is my first project:

Bananas are just for scale.

I could of re-weld and re-polish all the imperfections, and do some finish, but maybe next time.

My takeaways about the welder. It is not a hand-help 3D printer or a glue gun, even though it spits the wire. You cannot (easily) 3D-print with it. Also, it is much easier to deal with thick material than with a thin one. It makes holes in thin metal sheets and pipes like a woodpecker. Also, you cannot safely weld most of the metal parts you see around because they are either galvanized or stainless of non-ferrous. Bummer!