yes. that’s what i mean. some workout ask to do this but i can’t get the logic

i think if its a round dumbell, meaning it can roll it will also make the push up tougher. the core will work harder to keep the balance, shoulders will also work to keep balance. if its a hex type dumbell (flat base cant roll) then its like what others have mentioned on the wrist and etc..

Added elevation to trigger a wider range of pectoral muscles and arm extension or if the idea is to induce instability, I think it is more dangerous than beneficial