i had some fun with 2 puzzles c4u 3x3x4 and a crazy 2x3x3 and i got this.
don't know if it has been done before but if i bandage the circle this might be a cool puzzle/cubeoid

Interesting idea, somewhat reminds me of the Madness 3x3x3. I think if you spent some time sanding down the parts and getting some stickers for it, it could turn out really great.

it seems like the puzzle i am working will tern out like a madness madness 3x3
or a madness 3x3
so i going to change it up a bit

SmaZ built it

like i said i am going to make it a diffident puzzle