I have a hollow door but what's the best way to stand the mini figures securely ?
First frame out the hollowed out area of your door,next construct shelves in the newly framed area of your door. Then you might want to make a plexiglass cover on hinges to keep the Lego figures visible and prevent them tumbling out.
If you want to keep them in place, you could make a flat table of legos on each shelf (glue this in place) where they would be pressed onto holding them securly.
you could also use velcro on the bottoms of the items
Thanks for the great ideas !!
Amazon: Mounting putty. It works.
Hot glue should work
We call it gummy stuff but it looks like putty or gum for hanging posters. It will not damage your legos either.