Believe In Your Dreams Small Soft Pouch
This unicorn pouch would be a perfect place for your coins and other small cards and stuff. Just too cool to hold and no more mess while finding coins in your big side bag. Even those pesky pennies should be used but with a little style, so that people would focus more on your bag rather than you using your pennies.
Something which is easy to keep in the back pocket, try this one and make it hassle free.