While browsing Facebook, I came across a homemade "Adding Fun" adding machine on the Teaching Ideas Facebook page, which originally was posted on the blog, Mothering with Creativity, on the blog post HERE.  Their "machine" looked like this:
So this morning, my 9 year old daughter and 6 year old daughter helped me make our own version of the addition game.  My 6 year old said she liked the pink "plus" sign I drew and colored in the center of the board. :)
My 6 year old daughter decorated the white foam board with Fall stickers that she pulled out of our art closet and she drew purple hearts on the board.  Hence, the title of our machine..."Falling in Love with Addition."  :-)
We taped another backward "L" shaped white foam board to the back of the front board to allow the front board to stand up on its own.

We cut out the bottom of 2 white plastic cups and taped them with clear packaging tape to 2 empty paper towel rolls.  Then taped these tubes to the board. Above my daughter is placing 2 red glass beads in the left tube.
Then she placed 5 clear glass beads in the right tube and counted the total number of beads in the white "equals" tray at the bottom.  Any counting manipulative will work and any math program.  My daughter filled out a row of addition problems in her Kindergarten Memoria Press Math curriculum.