If you had Kowalski's brain what would you invent?

Probably not much, considering his inventions usually backfire.

I would invent something to make the Penguins real. :D

A teleporter to send me into the world of PoM as my OC.

Hmm... excellent question. How about a device that allowed me to travel in and out of any book, film, TV ipakita or video game at will? Or... a portal that allowed me to travel between worlds? My brain is a bit cheese-like at the moment, so I'll probably come up with some better ideas later and edit them into this answer.

Hooo I like your idea about the elixer :D
Foooood<3
anyway ;3 I would invent a helmet to help me get the books written material into my head, in a short time, so I will not waste time learning for exams :DDD
And of course I will be installing a button to alisin non-essential information in order to not overload my brain :}

Or, in a different thinking direction, make up a sinag reduces the calories of pagkain to 0, so the pagkain will be the same thing! only he could not make us fat, then we can eat as much as we want!!! :D
That's about what I'm doing now ... But would not hurt to invent something like that ^0^

Find a way to destory all schools, and not get arrested

a robot that will follow my command , give me massages , and do my homework :)

A way to clone myself but to also morph back togehther with the clones, so we could learn a bunch of information at once bt morph together to remember it xD Oh and something that can make you shapeshift... and this thing that would let me imagine a picture and create it without actually drawing it out, that way, my art would look good and I wouldn't have to draw xD

I do not need Kowalski's brain power. I can invent things easily, using my own mind.

Make a lot of clones of myself so they do everything and one clone will be smart so that can do my study while I just take everything easy.

If I had Kowalski's brain I would invent an interdimensional portal so I can finally see him in real life.

Sigh...

What would I create? That's a toughy, but if i had to create one invention, i'd probably create a lazer that can give us fanguins madami power so that we can all take over the planet.