I own a couple API 4WW Water Wiggler Water Agitator for Bird Baths and the raccoons are always chewing up the floats and the little plastic mount. I designed these replacement parts based roughly on the original parts, but tweaked them a bit to my liking. Specifically I made the floats larger, so they produce larger ripples in the water.
Here is a link to the onshape files if you want to make any modifications.
PETG would be better than PLA since they tend to be in the sun. I suppose ABS would be ideal, but I don't print that at the moment.
The author marked this model as their own original creation.