Found a rubber ducky egg, what to do?

I was cleaning up the celler where I had Tyrone the rubber ducky chained and found in the deep recess of one of the celler corners an EGG. I'm guessing Tyrone was not what I thought HE was. But that he was indeed a SHE well now I'm stuck with this rubber egg what to do? Give it to Mollgog to hatch or make me a rubbery omlet for breakfast?