The "What If" Game Answers
1.  You may have a better answer, but for my story, I chose to have my character Snip sleep in an oriole's nest because they're made with milkweed fibers and are very soft.

 
2.  It's fun to imagine my characters hitching a night ride on a luna moth, or harnessing themselves to the back of a sandhill crane on migration.

 

3.  I imagine canoeing in a milkweed pod; needing to watch out for fish who would gobble me up thinking I was a minnow, and riding on the back of a painted turtle.  But what happens when the turtle dives under?  And would it be possible to put a bit in a turtle's mouth and steer it?

If I was three inches tall, I could dive into a pond and swim up the entrance of a beaver lodge.  It would be great fun to pop in and visit a family of beavers.