Bean

I bought a string of 20 lights, they are big round bulbs for summertime outdoors. They came with replacement fuses, but since they are big bulbs, no replacement bulb. Of course while trying to hang them today I found out they were made of glass and not plastic when one bulb shattered. I am clueless about this type of thing, so I don't know, is it safe to use them still? Should I unscrew the rest of the bulb from its socket or would that be even worse? I plugged them in just to see, and they worked, but the inside of the broken bulb (filament, perhaps?) was fine until it brushed up against something and made a pop noise and left a black mark. I realize I probably have to toss them - what are the chances target would replace them (I know it was my fault, but they also didn't provide a replacement!)? Thank you