Ready Made Caches are good to go!
Container, log and sometimes more such as Geoswag, Stash Cards etc.
2ml Screw Top Micro Tube + RITR Logsheet
2ml Test Tube with RITR Logsheet
Easter Bunny Cache
Fake Grass Cache 1
Mini Magnetic Birdhouse Cache Container
Mini Magnetic Chalet Birdhouse Geocache
Official XX-Small Geocache with Log Strips - Green Camo
Ready Made Cache - Small, options available
Small PET geocache container with Rotolog 120