They make a 5 gallon bucket with a swivel seat on it, all camo that I used till someone borrowed it and forgot to return it. The Swivel seat covered the bucket top, you could put the caller, pruners, etc in the bucket easily.
You have to remember that anything you carry out, also carries scent with it. I use sardines in oil, two cans per sock, two socks put out near us. I have drug a sock and have had them brush my shotgun barrel laying in my lap running from a blind spot with the turbo's full bore!