Amazon offers Prime members the Good Times 32" Floating LED Alligator, model no. GTPD-AHD100, for $23.41 with free shipping. (Non-Prime members can spend $49 or more to qualify for free shipping; otherwise, shipping adds $7.34.) That's the lowest total price we could find by $42. This gator decoy features LED eyes and deters unwanted birds and animals.

Update: The price has dropped to $16.80.