1. Find a piece of cardboard about 2' wide by however long you want your tunnel to be, or use a box with shallow sides and a fold-over lid

2. Fold the cardboard in half or open the box and prop upright like a teepee.

1. Another way to make a tunnel is to arrange your house so that there are fun places for your bunny to explore. This is often quite simple. All you need to do is move a piece of your furniture about 6-10" (depending on your bunny size) away from the wall. A desk or shelf often works just fine.