Caution!  When they tell you the 3M VHB (Very High Bond) double back tape
is near permanent once in place, they mean it!  Luckily for me, when this
lesson was driven home, the item I wanted to remove succumbed, with a lot
of effort, to the fishing line trick.  But that darn stuff really holds.
Recommended for those things in and around the van that you really want to
stay in place. Just be warned that getting the mounted items apart later is
going to be a challenge. One positive point.  The tape itself will come off
without leaving a bunch of gummy stuff behind it like regular double back
tape.