Nowhere near as small as those, but I absolutely LOVE these. They're about 4 inches long, by 1 inch wide and completely watertight. Perfect for a log, pencil and even some small swag.

Aliexpress is like a chinese Amazon if you're not familiar with it... and like most things from chinese direct sites, expect your order to take 3 to 4 weeks. Totally worth the wait IMHO tho.

EDIT: I Looks like they are out of stock on Ali... but Banggood has them... cheaper even.

EDIT: II Well dangit, looks like Banggood is OOS too... there are a few more left on Amazon... almost twice the price tho.