Yet another "draw a box" Question The following problem is a common interview question, thus dull answers are discouraged. Go short or creative, best if both:

Create the following pattern

###########
##       ##
# #     # #
#  #   #  #
#   # #   #
#    #    #
#   # #   #
#  #   #  #
# #     # #
##       ##
###########


In case you cry "dupe", 
 I see your point but this is a slight variation and I hope it differs enough to be greenlit.
Charcoal, 9 bytes

Ｐ¬↙×⁶#‖Ｏ¬


Try it online!