I would like to make some highland games equipment for myself; however, I really don't want to go the DIY route(ie. stacked plates).

What is the best way of going about this?

I have considered buying some 4x4x1/2 square tube, and capping one end, pouring the appropriate amount of lead into the void, and then capping the top. Would this work? Is the implement going to take the abuse?

Can I just buy solid 5x5 square steel?

Can anyone help me with this project. Measurements, pictures, etc. would be much appreciated.