Step 1: Dig a Hole
Dig a hole to set the stepping stone on top of,but don't dig the the hole bigger than the stepping stone.Fill it with water to keep it moist to attract the toads.
Step 2: Make an Entrance
Make an entrance connecting to the hole and set the stepping stone on top.The toad can go in the entrance and have its own little cave.You can make an exit if you want to.
Step 3: Make Sure the Entrance Is Big Enough
Step 4: Cover
Plant plants around the toad house so it will have cover from predators.
Step 5: Water
Set a saucer or a upside down frisbee of water for the toad.You don't need to worry about the food cause the moisture in the toad house will attract bugs.
Step 6: Be Patient
It took two years to attract a toad to my garden.
If you live near woods you will have no trouble attracting toads.Don't take toads from their environment and take them to yours.