I know what you mean but as Rhino said you'd need a fairly meaty shock and then a way to secure the bottom mounting part to it with out knacking the shock.
Welding is not really good idea as you would be welding a pressurized shock
and trying to clamp some sort of bracket might collapse the housing too.
I have heard of guys welding to shocks before to make there own coil overs but you wouldn't catch me doing it !