Acme Design Company always makes me think of the Coyote and the Road Runner and all the boxes that the Coyote would receive that usually either blew him up, pounded him flat or blasted him into oblivion. Like those cartoons Acme is a very fun line of pens.
Please click on this link to read more about the story of Acme Studio.
Acme produces of wide range of writing instruments with wonderful designs. They are available from a wide range of vendors including Goldspot Pens, Swisher Pens and Pencity.
These pens are generally only available for purchase as a rollerball, which is how my pen started it's life, but the nib section and converter is available so that you may transform your favorite design into a fountain pen.
Of course, for me that design had to be Dogs by Nancy Wolff, but the pens range in design from Alphabet by Ron Dyer to Zorble Five by Marty Kenney, there simply is a pen for everyone here.
The fountain pen nib for this pen is only available as a medium, which many may not find acceptable but I'm ok with.
Click on writing sample to enlarge: (paper is Bloc Rhodia No 16)