Not sure about "boominator", but I found a boomless spray nozzle at Northern Tools for about $20. I used one to add a broadcast spray option to the 25 gallon spot sprayer I sometimes put in the back of the Gator. It has a 1/4" male NPT connection & runs with any pump that can do at least 1 GPM @ 15 PSI. It is plastic rather than brass & has a spray width of 16 feet from a mounting height of 3-4 feet with the spray angled back a bit.
Nick