Build a log flume in your back yard. Should be easy - purchase a pool slide, install an inground pool, put rock around the slide to resemble a mountain.I know I saw a ballet gender reveal!
Build a small log boat
Have a friend dress your dog in either a blue ballet tutu or a pink one
Put dog in log and send down the slide - oops, log flume
When the dog comes down and slashes into the pool, you will see the blue or pink ballet outfit
A bit expensive, but price doesn't matter does it for a gender reveal?
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