I now own more than 52 decks of cards, so could make up such a pack. However, it would involve splitting them up; I'd end up having to make 52 such packs, which would be rather less interesting tham having 52 packs with matching cards.
However, thanks to the wonders of the Internet, the other day a pack of 52 cards from 52 decks came up for sale on eBay. I duly bought it. Two of the cards are patience-size, but the rest are broadly the same, regular-size. Here are the most individual backs on them:
Hmm, I guess if I'd have paid more attention, the trains one would be the right way up there. Of course, the pack only has 52 cards and to be formally correct I really need two jokers for it, but as it happens I have some spare jokers so can easily complete the set.
Also when I was a kid, I wanted to make up a pack of cards from individual cards I found lying around lost. Whenever I found one, I wrote on it where and when I found it, and added it to the collection. I did pretty well, and got over 30 cards this way. Then I went to university and discovered that there weren't cards lying around on the ground there like there had been at school. I subsequently discovered when I came home during the holidays that one of the cards I'd picked up had been a little too lost, and had picked up some kind of mould that it spread to the rest of the pack-in-the-making. As a result, I threw them all out.
I don't suppose I'll ever achieve that second aim any more, but it's good to have achieved the first one.