Hi Waggi, :)
My 99p store still has a hand-tool with a mattock head on. I intend to replace the short handle with a thick broom handle to make a lightweight mattock. You could do the same if you can find a similar tool in a bargain shop in your area.
I would send you the head off this tool if I could afford the postage etc (its not that light) but I couldn`t at this time.
Best of luck, Col