Re: Plastic 'flight stands'

> Short of replacing them with metal stands what do you do to prevent
this?
>  I can see filling the bases with something (but what material?) or
> gluing them to metal washers (would this be sufficient?) but if
anyone
> has an alternate idea please speak up.

You need more weight at the bottom and/or a broader base.  You might
try getting some fairly large fender washers (which have a smaller
inside-diameter than a normal washer would have for the same outside
diameter), and glue the flight stand on top of it.