Mojo Butt Up Rippler

Does the MOJO help close the deal on wary greenheads?

Benjamin David | December 22, 2021
Color | Mallard
Material | Plastic
Type | Motion Decoy
Size | Avg. Mallard Butt Sized
Batteries | 4 AA (not included)
Battery Life | 6-8 Hours
Manufacturer | MOJO
Country of Origin | Imported
Warranty | 90 Days against MFG Defects
Price | $39.99






Motion in the decoy spread helps seal the deal on wary birds, so we wanted to see if adding the MOJO Butt Up Rippler decoy to our spread, would help bring in wary birds. We bought one and put it to work in the field. So is it worth 40 dollars?

First Impressions

Upon initial inspection, the MOJO Butt Up Rippler is a heavier more solid feeling motion decoy than the similar offering from Lucky Duck. It’s also a bit weightier, which hopefully translates into better motion. Opening the screw-in bottom exposes a motor the same size used by Lucky Duck in the Quiver Magnet, but with beefier internals, a spinner weight that’s about 2.5 times heavier, and a 4 cell battery holder, versus 2.

Our initial impression, or hope anyway, is that the MOJO should do just fine, and certainly do better than the Quiver Magnet to create motion in a decoy spread. We loaded up batteries, threw the rippler into a decoy bag, and were ready for a frigid morning hunt the following day.

MOJO Butt Up Rippler Internals

Inside the MOJO Butt Up Rippler. Simple, but better built than the Lucky Duck Quiver Magnet.

In The Field

The morning started with a mile hike in the snow to our unfrozen hunting spot, a task that makes you consider the value of the equipment you are carrying, from an effectiveness perspective. We threw out a bunch of dekes, set up a spinner, covered the layout blind in snow, and then flipped the switch on the MOJO Butt Up Rippler. The motion was visible and decent when the water was calm, but anything more than a breeze, and the effect of the MOJO was negligible.

MOJO Butt Up Rippler Ripples

The MOJO Butt Up Rippler making ripples in calm coditions.

The MOJO provided over 4 hours of rippling motion on a frigid morning before stopping intermittently. When we picked up our decoy spread after 5 hours in the field, the MOJO had actually stopped. It also made some clunking sounds, when placed back into the decoy bag. Later, upon inspection, we saw that one of the battery holder retention clips had spun open, and a single AA battery had popped out. Whether a battery getting free is a common issue, we won’t know for a long time, as we probably won’t carry the Butt Up Rippler a mile in the snow, when a spinner would be a more effective tool, at a similar size and weight. If the worst is the norm and it’s a repeating issue, it does look like you can snug up a screw on the battery retaining clip.

At the end of the day, the MOJO Butt Up Rippler worked as advertised, but it didn’t have much of an impact on our hunt.


So what’s the verdict? Unless you spend a lot of time hunting exceptionally still water, on very calm days, the MOJO Butt Up Rippler isn’t going to do anything incredible. On an average day, with the slightest agitation of the water, any rippler just becomes a heavy and overpriced puck or mallard butt decoy. For another ten bucks a spinner, like the Mojo Teal Motion Duck Decoy, will add more attraction to your spread and be a much more effective tool in your pursuit of ducks.

With all that said, if you do have a lot of calm days, the MOJO Butt Up Rippler is better than any other option out there, for under $40, and you will get a decent rippling action, as well as good battery life.

Tags: , , | Comments
Sportsman's Magazine Author Photo
Written By Benjamin David
Benjamin is an avid outdoorsman with a wide range of experience hunting, fishing, climbing, and backacking. He brings his knowledge and experience, to Sportsman's Magazine, and is a major content contributor. Leave Ben a comment or question.

Leave a Reply

Your email address will not be published. Required fields are marked *