Granted, the artifacts from white plume mountain appear right next to you. Then, suddenly, you have a giant mountain that appears on top of you, crushing you and the artifacts underneath it. The magic items are no longer within reach of anyone except earth elementals, and creatures with burrowing speeds.

I wish for the death of all cats, and only all cats.

granted all house cats, loins, tigers, leopards, jaguar, Ocelot, cheetah and more die. 1. you are a monster 2. there will be no more cat memes 3. the chaos of this mass die off nearly destroy the ecosystem

I wish to have cats and dogs living together

Granted. That existed yesterday. Now it doesn't because all cats died. ( I think you meant lions, not loins. Totally different things.)

I wish for all dogs to rule the world. Their population will grow from eating all the dead cats.

granted, dogs now have legal rulership of the entire cosmos. But they are dogs so noe of them ever use this legal authority, or even realise they have it 

i wish i could stop procrastinating, but i also want a lot of sand...

You suffocate under this mountain of sand.  You are dead, now you cannot procrastinate.

I wish for a ring of spell storing that can store 49263 spell levels.

Granted but because earth is a anti-magic zone it doesn't work

I wish for a lynx

https://www.dndbeyond.com/characters/9605962

https://www.dndbeyond.com/characters/16142156

Here you go! LINKS!

(get it?) LOL

I wish to live in the world of Krynn and to have a ring of spell storing that can hold up to 4645 spell levels.

granted, but your arrival into the world of krynn starts an magical cataclysim akin to the spell plague in thoril, thus destroying all means of casting spells. Everyone blames you, and you are killed by an angry mob of former wizards

i wish that my dnd books became lighter so i dont break my ******* back having to carry eight books to my friends house whenever we play dnd at his house

Granted the become weightless and get stuck on the ceiling

I wish for some more links

Quote from ArtificeMeal >>

granted, but your arrival into the world of krynn starts an magical cataclysim akin to the spell plague in thoril, thus destroying all means of casting spells. Everyone blames you, and you are killed by an angry mob of former wizards

i wish that my dnd books became lighter so i dont break my ******* back having to carry eight books to my friends house whenever we play dnd at his house

 Wait, only 8 books! Ha. HA. HA! That's nothing! My backpack has at least 15 giant D&D books in it at a time, along with 3 binders. It weighs over 50 lbs! I hate how heavy they are. Not saying that you don't have a hard time as well, just I need to stop bringing so many books with me, I just normally need all of them.

Granted. https://www.dndbeyond.com/forums/d-d-beyond-general/general-discussion/53942-venom-character#c7

https://www.dndbeyond.com/forums/d-d-beyond-general/general-discussion/14668-which-class-do-you-think-is-the-most-powerful?page=2#c36

I wish for a ring of panda controlling.

thats exactly the issue, you allways need all of them! and i have to like bike, like not far or anything, just six kilometers, but its stil exhausting, and this issue will only amplify as my collection grows

anyways granted, but the act of creating the ring kills all living panda on earth, and everyone knows it was you. Have fun!

i wish that the title of "grand wizard" ceases to be used or associated with the ***, because hate groups do not deserve cool titles like that

I know, I currently have a Spelljammer campaign, and they can go anywhere and do anything, so I literally need all the books I have. I wish I had a tablet with the books on DnDBeyond to fix this problem. I do prefer physical books though. 

A few years ago, I had to bring my whole backpack to my cousin's house, which is about 2 miles away, and over 2 giant hills. I had to take all my books there, and when I got there I nearly passed out because of heat stroke and exhaustion.

Granted. The *** now ceases to exist and ever have existed, and the world is now a better place.

I wish for a ring to undo my last wish, bring back all the pandas, allows me to control them, and erase the memory of their deaths.(Fun Fact, did you know that pandas are actually better at eating meat than bamboo, they just always choose bamboo? No one know why.)

Done but they come back as zombies and do, in fact, now prefer more meat over bamboo. Brains to be specific.

I wish I had a debit card that just always had the right amount of money for whatever I was paying for and had no expiration date.

Nice, I have an army of zombie pandas that I can control anytime I want! :)

Granted. You "had" one. No longer have it anymore. You didn't use it for anything important before.

I wish for everyone on the planet to have a fedora stuck to their head with Sovereign Glue.

That includes you.

I wish that I could summon ice cream in whatever flavour I wanted, in a cone, in my hand, whenever and wherever I wanted.

granted, inside the hats are universal solvent.

i wished that there was an piece of new, high quality, official 5e material released by wizards of the coast containing rules for dnd campaigns set in outer space

Hey, I already answered that one!

The rules are "You can't run a campaign in space, as spaceships haven't been invented in the Forgotten Realms."

I wish that humanity had established a fully working, safe, habitable colony on Mars and solved climate change successfully.

Getting a ticket is so expensive, not even rich people go.

I wish that I am able to shape-shift.

Sorry to be a nerd here, but there is no way to "solve" climate change. The climate has been changing ever since the world started. Recently it has been increasing in temperature at an astounding rate, and cannot simply be "fixed". We can possibly, very unlikely, reverse the affects humans have had on the composition of the atmosphere by rebuilding ozone, planting trees, creating more oxygen by getting rid of CO2 but there's no way to fix all that we've done to the climate.

(Also, I have a spelljammer campaign right now in 5e, and Forgotten Realms definetely has created space ships.)

Granted. We all move to Mars, and stabilize the climate there, while Earth turns into another Venus.

I wish for a real life spelljamming ship.

Sorry, that was stupid of me.

Better hope that thing isn't too big, as it appeared your house.

I wish that the tickets to Mars cost £2.50 at today's value, and that instead of solving climate change, average worldwide temperature is lowered by the 1.5 degrees Celsius it has been increased by since the start of the Industrial Revolution, reversing all the effects of that increase.