I have been waiting for Winco to open in Las Vegas for a while and a couple months ago I got my wish. Winco offers many bulk items that are great for dry pack canning that you can't purchase at the LDS cannery.
On average this is how much a #10 can held of each product.
Potato Slices- 1 lb 3 oz
Potato Shreds- 1 lb 11 oz
Rotini Pasta- 2 lbs 4 oz 20# took 9 cans
Fettuccine (had to be broke in half to fit in the can) - 4 lbs 20# took 5 cans
Angel Hair (had to be broke in half to fit in the can)- 5 lbs 40# took 8 cans
Granola- 3lbs 1 1/4 oz
Pancake mix- 4 lbs
Powdered Sugar- 3lb 10oz
Dry pack canning at home is cheaper than purchasing from a company who has already canned the item for you. For example: I paid about $4 for a complete #10 can of potato slices, but if that were to be purchased from Emergency Essentials that item is $6.95 plus shipping.
Even my 17 month old got into canning, but her priorities were her toys.