A script for calculating the rate of employee attrition (voluntary departure) in Human Resources was named the "Quantitative Attrition Calculator" or "QuAC" for short. The icon was a duck.
I always had a laugh when they said the name - some got the joke and loved it, which was great... but, even better was the one who "refused to be made a fool of" and would always make a point of saying the letters. (Bless her :) )
Just last year, I had to write some Customer Relationship Management Software - which brought back memories of Quac and I went with the name "Customer Relationship Management Interface" or "CRMI" the logo was a frog and the interface was green. It's not easy being green.
:)
My suggestion: make it as fun as you can.