We have a new Sinker built by Elizabeth. Last year's can be found here. The first one was built many years ago and was made mostly out of cardboard and didn't last long. Last year's was better constructed but wasn't quite big enough to hold anyone without tipping over. This year's Sinker III had two layers of empty water bottles, plastic wrap, and duct tape and it actually floated the whole time we were at the creek! Water seeped into the duct tape shield eventually, but the water bottles kept it afloat.
Jonathan found new friends as he is wont to do and they caught crayfish together.