Milk Carton Boats with Dad

A couple of weeks ago, Liam and his dad made this, inspired by a craft shown on public television.

The Ocean Glider

Now I have to stealthily recycle all milk cartons after Liam has gone to bed, because when he sees a carton being finished off, he immediately wants to make another boat.

Missing from the lineup--the boat given to Grandma Ann for her birthday

This is our fleet (Ocean Glider, Ocean Slider, Ocean Rider, and Ocean Hider). I'm not sure what we'll name any additional boats--or where we'll put them, for that matter.  See that milk carton standing up in the back?  I wasn't quick enough with that one, so we'll be making at least one more boat.  Do you have a birthday coming up?