This container made me think of a fun song that I shared with my kids growing up. A Disney song that Burl Ives sings in a movie called, Summer Magic, and also on a Disney Sing-a-long video, that I probably still have but can't play it anywhere. (VHS) You can look for it on Youtube if you'd like to hear it! But if you'd like to FIND IT, (the CACHE that is), just look where the ugly bugs crawl. 
To OPEN, just pop the top with your thumb, with the little tab above it's head. (Gotta crawl, gotta crawl, to the Ugly Bug Ball, to the Ball to the Ball, And a happy time we'll haaave there, One and All, at the Ugly Bug Ball....) Should be a quick find, use stealth, bring a pen, Happy Face Balloon for FTF!