Setting up flashes on uneven ground

Often times, I find myself off deep in the woods, needing to mount a flash from a high angle, or on rough uneven ground.  This is where traditional flash-stands fail.  Unless you have perfectly even ground they tip over.  All three legs are always the same length, and they are clearly designed for in-studio work, or on perfectly level pavement.  What's with that?  I get the idea that they are quicker to setup, but there are better ways.

When I'm shooting biking or skiing I know the ground will be uneven.  Here are the two solutions I've come up with to help in almost any situation: