Write a program to fabricate elaborate acronyms
Jelly, 8 bytes

ŒtḟŒlp”.


Explanation:

ŒtḟŒlp”.
Œt       # Convert the string to Title Case (lowercases then uppercase beginnings of word)
   Œl    # And on the other side, convert the string to lowercase
  ḟ      # filter: remove the elements from the right side (lowercase) from the left side (Title Cased). Only leaves the initials
     p”. # Cartesian product with a dot.


Golfed down under the Pyth one, thanks Dennis and Fry!