Franklin's stubby legs get him into trouble when he sneezes really hard, he ALWAYS smacks his face into the ground which makes him sneeze again, and starts a vicious cycle which can be pretty entertaining.
Also we've always had a hard time with the e-collars (cone of shame!) during surgeries because he has a long nose which requires a long collar but his legs are so stubby the right size collar often drags or gets caught on the ground. So we have had to switch to a blow up collar (which he is so long he still could get to his stitches in all 3 of his surgeries)
There are fabric e-collars like the one in the picture below. I found them for dogs at my local chain petstore. I know with the plastic e-collar, Kit would drag it and then get stuck on the tiles and end up being miserable... i ended up just holding the collar up whenever we were outside... then i saw the fabric ones and cursed the heavens for not knowing sooner... i'll get the fabric one when i get the girlie spayed in the spring
I have to hold Seanna's rawhides so she can chew them. She can't hold them with her stubbins. She'll bring them over to me and drop them on my lap, and look at me like "well?". I pick them up, she lays down, and starts gnawing while I hold and stabilize it for her. She's such a princess.
You don't need the diapers. This will actually slow down the potty training process. Just take her out every 30 minutes (literally) and keep her crated when you're not watching her. Crating is the best option for young puppies, they stay safe and out of trouble, just make sure the crate is small enough so she doesn't have a corner to pee in and large enough to stand up and stretch out.
Speaking of corgi challenges, when Shiro was little I could never tell whether he peed or not. He didn't squat or lifted a leg, he'd just let if flow. And due to short statue I couldn't see if anything was happening.