waterlogged lit campfire, can be most easily obtained by waterlogging a campfire and shooting a flaming arrow at it
i have some ideas:
-farmland: the easiest way is probably going to 22w13obaat (oneblockatatime update), mining a farmland, throwing it on your head then using world save insertion to get the world to a normal version
-snowy grass block: go to 20w14infinite, create a nether portal and write in a book and quill "skygrid", when you throw it and enter it will teleport you in the dimension with every block, then go to 22w13obaat and pick it up, here you can find every block, go to the snowy grass block and pick it up!
-protection and fire/projectile/blast protection on same armor: you can obtain it 1.14.2
-boots with negative durability: obtain boots (i saw doing it with netherite boots idk if it works with others but i think yes) then enchant them with soul speed 3 and downgrade to 20w11a and run on soul sand
-player head: go to 22w13obaat and go to the end, wait a enderman to hold a player head kill him and grab the head
-milk from squids: go to beta 1.2 and use a bucket on a squid
-lit furnace: go 12w41a put something cooking and update to 15w47 (i think you can do it with other versions too) and furnace should broke!
I think "snowless snowy grass", and "negative durability item" would be great categories. I'm surprised negative durability doesn't already exist. There is actually a better way to get player heads, which is 20w14inf, go to the ~N dimension, and there is always a player head at (190, -60) supposedly. Which is a much more reasonable method, and I think fits nicely. As for milk from squids, yeah it's not discontinued, but it is definitely "weird", if there were to be a misc section, I think honestly it could go there, but currently there isn't, and I don't see a reason for there to be, unless there are similar categories which are debated. In my mind snowy grass block, negative durability item, and player head, should almost certainly be added. I'm worried about the enchantments because of the difficulty and length? But it might be fine. I am debating though, if player head were added, would it go in item or block? It fits both
