Get yourself a dozen or so Teal Lifetime Decoys!
https://lifetimedecoys.com/decoys/Unfortunately they don't make Bluebills yet. If you have mallards I would get a dozen flocked head Lifetime decoys as well.
Calling is not required but if you want to play with it do it sparingly. This is a very good call that is easy to use and learn on.
https://lastflightcalls.net/products/the-imposter-acrylicBoats! Well yes a canoe or kayak will work just fine. So will a fishing tube. Or you can go all in on something like this.https://layouthunting.com/nxt-gen-ufo-layout-boat-2/