Well, this was a $25 box I have had stashed for quite a few years, and I was pretty disappointed. I got, maybe 15%. Only 2 Wheaties. The newest date I saw in this box was 2010. I scanned through some of the shinier ones got rarities, but I don't have much patience for that.
I only dug out my contraption because my dad has left me 7500 or more pennies to sort through. I thought I'd warm up by cleaning out my closet of my own stash.
The last few years I have just separated out my pocket change and saved the copper. I imagine I have around 10k, or so. I pull out the Wheaties, and such. I've only found 1 or 2 Indians in the wild.
Dumping the zincs may be an issue. My main CU charges 5%, or nothing if you roll them. I'm sure banks don't give away coin rolls any more, do they? I'll have to check around.