for my first post I'll start simple...
I had 2 problems 1- the dog had chewed up my lawn and 2- I had an old LPG gas bottle getting in the way ( You can't just throw those away).
So I cut bits off both ends, then welded on 2 bolts. Then made up a frame pivoting on the 2 bolts and added a removable handle.
To add weight, I welded on a 3/4" socket and bung where I can fill it with water. though I may opt for vegetable oil because it's heavier and won't rust the roller.
PLEASE BE AWARE OF SAFETY BEFORE CUTTING OR WELDING GAS BOTTLES OR TANKS... MAKE SURE IT'S EMPTY AND FLUSHED
thankyou to Frank S for pointing this out.. (see post below)