In Germany Police would storm the house and arrest everyone for terrorism.
I did this kind of thing back in my esrly 20's because I'm crazy like that. The things I made were cereal brands
Grape seeds and Nutshells (grape nuts) because those things are hard as rocks.
Oops nothing (capt'n crunch oops all berries) because I was upset that once it was all berries, the berries tasted different
and Sad'ohs (Cheerios) because the plain ones taste like sad.
I can't find the originals, I know I actually printed them out and put them on the boxes, those are long gone, but the files are missing too. Google "oops all" and hot pocket flavors meme and you see this is a well loved hobby.
Whoa, and here I thought I was the only one doing this!
I remember Kellog's Cornflakes -> Chaos Khorneflakes with a Greater Demon of Khorne behind a bowl full of blood instead of milk.
My favorite work was Nasi Goreng -> Nazi Göring with a picture of Herman Göring in his white Reichsmarschall uniform and a speech bubble saying
Wenn euch DAS nicht schmeckt will ich Meier heißen! (If you dislike the taste of this, I'll be called Meier)
Background:
Göring was chief of the airforce and said that if one allied plane ever reached Germany People could call him Meier (one of the most generic German names). Needless to say, German cities were bombed to ashes and people called the air raid sirens 'Meiers Jagdhorn' (Meier's hunting bugle) because Göring would rather go hunting or on holiday than do his job. People still liked him just because of that. He didn't give a fuck.

In pre-internet times and before printers existed, I memed by collecting and cutting out all sorts of exploitable pics and text from newspapers and catalogues. I'd assemble collages from that and send it to friends in a letter. Good times!
Nowadays I have to keep funny pictures on multi-encrypted drives and use uncrackable high security devices that leave no evidence in case police raids my home for some bs reason and finds 'potentially divisive content' / 'possible copyright infringement' / 'Nazi codes'. Alice disposed of all physical evidence including my real life paper meme collection because we can't have nice things here. When did everything turn into such an Orwellian nightmare?