We created our Compost Tumblers for about less than $20 per bin. It's an easy DIY project that can be completed in about half an hour. All the supplies need can be easily purchased at your local big box retailer or home improvement store.
One 15 Gallon trash can with lid (black)
A drill and 5/16 bit
Punch air holes on the bottom of the trash cans and in the sides of the can every eighteen inches or so.
Fill the can with the 1:2 ratio of browns to greens (about 3/4 full), adding water after each layer.
Put the lid on and bungee it to the handles.
Once a week or so, lay the can on it's side and roll it across the yard to stir up the composting material inside.
After about a month, open the can to check progress and add water if needed. The compost should be finished in about 4-6 weeks.
To see more: http://theprudentgarden.blogspot.com/2014/04/cheap-diy-compost-tumbler.html