You know....here's an easy-to-do solution for her ..... for just 49.99, shipping included.....from walmart.com......she could order the 'Intex InflataBull' floating swim raft-riding bull, and position it between her dock and the boat traffic flow.
The outside dimension is an 8-ft diameter circle, color-black, with a realistic looking bull inside that will move about with the waves and wakes.....rocking back and forth.....plus it is a real challenge to ride it and stay on the bull..... not just for kids....fun for 200-lb adults, too.
For a swim raft.....it's the best fifty dollars ever spent.
www.intexcorp.com/56285ep.html ..... The InflataBull ..... no NH state mooring permit required for rafts ..... weight inflated - about 15-lbs ...with its' round 94" base and two handles is relatively easy to rig a mooring, will not flip over, upside down, with a big wind ..... a very stable design.
For best mooring .... just use the very durable 5/16" polyethylene yellow line ...... the low priced yellow line .... attached underneath to the two handles with a sliding loop bowline knot .... and anchored down to a large cinder block ..... or something heavy.
Once in position, this Bull definitely seems to have somewhat of a happy bull attitude along with two big horns....like a guard bull!
...... has that graz'n out in the pasture type of a bully expression......... moo!
Here comes the Bull ...... there goes the Bull ....... good for a bully laugh ....... gets bully attention....... no bull about it..... so bully this ....... yee-haa! ...