You're looking for a small container, so please BYOP.
In our Caching Around series we've created hides that span the full spectrum of the Difficulty Rating, including the half-stops. You'll see the listing below, showing the difficulty rating then the Caching Around series number. Click on the number to be taken to that cache page. If you're new to the series, why not start at the 1.0 and work your way up to the 5.0 cache. You'll even be able to complete all the ratings by selecting caches that are in geographical proximity. Happy Caching Around!
1.0 - Caching Around #15, #16
1.5 - Caching Around #5, #6, #7
2.0 - Caching Around #2, #17
2.5 - Caching Around #8, #11
3.0 - Caching Around #1, #3
3.5 - Caching Around #13, #20
4.0 - Caching Around #4, #9, #10, #12, #18
4.5 - Caching Around #14
5.0 - Caching Around #19