i would say be honest and try your best to find the owner...
looks like a wide angle converter that is screw in to your lens filter thread.
I found it at my home store room . LOL !
how i wish i can find something like that lying around .. haha
I'm on kit lens with a 52mm diameter.
So is there a way that I could attach it to my current lens ?
Sure, if you like heavy vignetting you can use a step-down ring. Do note the filter in the picture has a 4xmm thread, maybe 49 or even less. Remove the filter, get a step-down ring from 52mm to the size of the filter.