Crazy idea?

Drill, tap, eyEbolt, drowner weight supreme?

They're between $4 and $6 each

well,all bowling balls under 12 pounds float,so probably not.

Plus being round, they will roll around on the bottom and the beaver will drag them to shore.

Really, they float? I had no idea lol

A bowling ball is a bad anchor idea. They displace.to much water so it actually weighs nothing to speak of.

Go bowling. Roll the beaver down the alley.