My parents retired to Florida and are enjoying their waterfront house which has a enclosed screened pool and patio. I already bought them a TF-100 test kit, but now I'm looking for some "fun" ideas of things for their pool as Christmas gifts. They already have furniture covered. I'm thinking maybe a slow radio controlled boat for the grandkids to use? Some kind of neat lighting for atmosphere? They're not really swimmers, they just like hanging pool side and enjoying the view.